Luke 3:16Meaning & Commentary from the Church Fathers

In the Gospel of John, where it is stated, "And this is the testimony of John, when the Jews sent priests and Levites from Jerusalem to ask him, 'Who are you?' And he confessed, and did not deny, but confessed, 'I am not the Christ, but I am one sent before him.'" So remarkable and praiseworthy is the Forerunner, who served as the dawn preceding the midday brilliance of the Saviour, the herald of spiritual illumination, radiant as the morning star, and referred to by God the Father as a lamp. After affirming that he is not the Christ, he presents evidence that we must take into account, illustrating how vast is the gulf between God and man, between servant and Lord, between the humble servant and the One who is served, between the one who leads as a servant and the One who radiates divine dignity. What is this evidence? "I baptize in water; but there comes He who is mightier than I, whose sandals I am not fit to untie." Hence, as I have mentioned, the distinction is unparalleled, the superiority immeasurable, for the blessed Baptist, despite his great virtue, claims he is unworthy even to touch the straps of His sandals. And this claim is accurate: for if the celestial orders, including principalities, thrones, and the holy seraphim who encircle His divine throne, continually exalt Him as Lord of all, what earthly inhabitant is deemed worthy to approach God? Though He is loving, gentle, and gracious, we, being frail children of the earth, must recognize the limitations of our nature. After this, he provides a second piece of evidence, stating, "I baptize you with water, but He will baptize you with the Holy Spirit and fire." This is significant in affirming that Jesus is God and Lord. For it is the unique and distinct attribute of that which surpasses all to bestow the Holy Spirit upon humanity and to enable those who approach Him to partake in the Divine nature. Yet, this exists in Christ, not as something borrowed or shared, but as inherent to His essence: for "He baptizes with the Holy Spirit." Therefore, it is evident that the Word who became flesh is indeed God and the embodiment of the Father's essence. However, some may challenge this notion by suggesting that those who separate Christ into two different beings—the Word of God and the one descended from David—might object, as Scripture notes, "they are animals and devoid of the Spirit." What is our response to this? Indeed! We maintain without hesitation that the Word, fully God, imparts the Holy Spirit to those deemed worthy, already doing so while incarnate, being fully one Son, united with flesh in a mysterious and incomprehensible manner. For the blessed John the Baptist first stated, "I am not worthy to untie the straps of His sandals," and then added, "He will baptize you with the Holy Spirit and fire," clearly indicating He possesses feet for sandals. No one awake would claim that the Word, who is incorporeal and pre-incarnate, had feet and sandals until He became man. Yet, simultaneously as God, He accomplished acts worthy of divinity, granting the Spirit to those who believe in Him. For in that one person exists both God and man concurrently. Someone might protest, claiming that the Word performed divine works through the one of David's lineage. If that argument is made, we will reiterate John’s words; he proclaimed to the Jews, "There comes one after me, but He was before me, for He was before me; and I did not know Him, but He who sent me to baptize with water said to me, 'Upon whom you see the Spirit descending and remaining on Him, this is He who baptizes with the Holy Spirit; and I have seen and testified that this is the Son of God.'" Thus, clearly referring to Him as a man, he indicates that He exists prior to John, as He is supreme in His Divine nature; aligning with what He Himself declared to the Jewish populace, "Verily, I say unto you, Before Abraham was, I am." He further affirms that the Spirit descended upon Him from heaven. Do they assert that the Holy Spirit came upon the Word of God when He was still abstract and incorporeal? Do they claim that He who bestows the Spirit receives a portion of His own Spirit? Or do they instead propose that, having received the Spirit in His human nature, He, in His divine nature, baptizes in the Holy Spirit? For in Himself, He is the singular, true Son of God the Father, just as the blessed Baptist, enlightened by God, testified, saying, "And I have seen and testified that this is the Son of God!"

There was indeed One they anticipated, and it was He whom they awaited who came to them. How absurd it would be to honor in others the One they anticipated and yet refuse to believe when He actually arrived. They anticipated His coming through a woman yet doubted when He was born of a virgin. What could be more fitting for God than the birth of the immaculate Son, who retained the purity of His divine origin despite taking on human form? The virgin birth (cf. Is. 7:14) was unmistakably a sign of His divine nature. John affirmed, "I baptize you with water." By openly fulfilling his ministry, John demonstrated that he was not the Christ. Humanity consists of both body and soul; thus, the visible aspect is sanctified through the material and the invisible through the spiritual. Water cleanses the body, while the Spirit purifies the soul from sins. While performing one act, we call upon another, although divine sanctification flows through the same means. The act of cleansing encompasses more than water alone; one cannot separate them. Therefore, one represents baptism of repentance, while the other symbolizes baptism of grace, the latter incorporating both elements, whereas the former includes only one. Since sin affects both soul and body, their cleansing must also encompass both. St. John understood the hidden thoughts of their hearts, yet he did not disclose them openly, thus alleviating the envy of his position and demonstrating through actions rather than words that he was not the Christ. It is up to humanity to atone for sins, while administering the sacrament of forgiveness is a divine gift.

Then he remarked, "But here comes the Stronger than I." He used a metaphor not to indicate how much greater Christ is than himself—there is no true comparison between the Son of God and mortal beings—but to acknowledge that many possess strength. The devil is indeed strong, and no one can seize the possessions of a robust individual without first binding him (Mark 3:27). There may be many strong individuals, but the strongest of all is Christ. Far from implying any comparison, John further asserted, "I am not worthy to carry His sandals" (Matt. 3:11), making it clear that the gift of proclaiming the gospel is entrusted to the apostles who are called to share the good news (cf. Eph. 6:15).

It is possible that he expressed these thoughts because the entirety of the Jewish nation is often reflected in John's persona. His proclamation, "It is fitting for him to grow, but for me to decrease" (John 3:30), signifies that the Jewish people would diminish, while the followers of Christ would increase. Moses also embodied the Jewish people, yet he did not wear the Lord's sandals, but those of his own feet. The apostles, too, were freed from their worldly burdens when they were sent out without shoes, staff, purse, or belt (see Luke 9:3, Luke 10:4, Luke 22:35), although they did not receive shoes from the Lord until after His resurrection. It is likely they began to wear them after that pivotal event, which preceded their commissioning, for prior to the resurrection, they were not to disclose His miracles (see Luke 8:56). Afterward, however, they received the command, "Go into all the world and preach the gospel" (Mark 16:15), so they could establish the foundation for gospel proclamation and share the story of the Lord's deeds with the world. In this way, proclaiming the gospel acts as a symbolic shoe of marriage, although this topic can be explored more thoroughly at another time. He will baptize you with the Holy Spirit and fire.

The nature of these two manifestations is something no one can fully understand, not even one as great as John. Who truly can explain the mystery of the incarnation or the descent into hell? "He will baptize you with the Holy Spirit and fire," a declaration also found in the mentioned chapter of Matthew's Gospel. Christ baptizes believers with the Holy Spirit in this life and those who do not believe with fire in the life to come.

For He will be like a refiner's fire and like fullers' soap. He will sit as a refiner and purifier of silver; He will purify the sons of Levi and refine them like gold and silver (3:2, 3). And for the wicked, it will be a consuming fire (4:1).

However, it is through the baptism of Christ that true remission of sins will be granted: "He will baptize you with the Holy Spirit and fire." This signifies that Christ will purify those who turn to Him in repentance through the sanctifying work of the Holy Spirit while simultaneously bringing judgment upon those who remain unrepentant through fire. The intended meaning of these words is clarified by the subsequent metaphorical language, which acts as an explanation, referencing the ‘unquenchable fire.’

Cognizant of the prevailing needs and imbued with the spirit of prophecy, he recalled how the prophets of the Old Testament had foretold the arrival of the Messiah, proclaiming that Jehovah would "pour out His Spirit upon all flesh" (Joel 2:28), that He would "pour water upon every thirsty man, and streams upon the dry land," and that "His Spirit shall be upon the house of Israel" (Isaiah 44:3, Ezekiel 39:29). Therefore, he could not doubt that He, of whom he was merely the herald, and whose sandals he deemed too great an honor to untie, would come not solely in judgment but also with blessings, bringing the supreme life-giving force, which is the power of the Holy Spirit. As a result, through John's preaching and the remarkable act of baptism he performed, the anticipation of the Messiah, as proclaimed by this new prophet, flourished within the hearts of the people. Ultimately, this Messiah revealed Himself publicly after His long and obscure period in distant Nazareth.

He proclaimed, "I baptize you with water; but the One who comes after me is mightier than I, whose sandals I am not worthy to carry"—or as interpreted by St. John Chrysostom, "I am not worthy to be even among His servants and take on the lowest role in His service."

In ancient times, people wore simple sandals—a protective covering made of wood, bark, or leather strapped to the foot. They typically removed these sandals upon entering a home, often aided by servants who undid the straps. St. Gregory the Theologian elucidates John’s statement further, pondering the significance of the sandal strap. He suggests it may symbolize the profound mystery of Christ's incarnational essence, which presents challenges not only to those still maturing in faith but also to saints like John.

To emphasize the distinction between his own baptism and that of Christ, John continued, "He will baptize you with the Holy Spirit and fire." This indicates that the Lord would unite both forms of baptism—baptism in water for repentance and baptism in the Spirit for regeneration, as noted by St. Basil the Great, renewing and cleansing believers through a profound, grace-filled operation. Additionally, the mention of fire underscores the empowering essence of grace, as remarked by St. John Chrysostom. The ancient prophet also depicts Christ's purifying effect on souls through the image of fire, stating that He will come as a refiner and purifier, purging the sons of Levi, making them offerings in righteousness (Malachi 3:2-3). In interpreting these prophetic words, St. Cyril of Alexandria illustrates the Holy Spirit's purifying action, likening it to skilled metalworkers who purify silver and gold by melting away impurities, showcasing the grace of the Holy Spirit as capable of cleansing our hearts and minds from sin.

John's proclamation foreshadows the coming of the Holy Spirit to the Apostles in tongues of fire (Acts 2:3) and suggests that the baptism of fire may also allude to future judgment, as St. Basil the Great references in connection with 1 Corinthians 3:13. The Forerunner conveyed the idea of separation and purification that Christ will enact, using vivid imagery relatable to the Israelites: "He will clear His threshing floor, gathering the wheat into His barn, but burning the chaff with unquenchable fire." The threshing floor signifies Israel, the wheat symbolizes the righteous who are fit for Christ's kingdom, and the chaff represents the wicked and unfaithful. When Christ appears to the world, He will distinguish between the two, with the faithful entering His church while the unrepentant remain outside. This division not only pertains to the Jews but to all humanity, culminating decisively at the final judgment when the wheat will be eternally separated from the chaff, the latter destined for unending fire (Matthew 13:37-43; 25:31-46).

In addressing the people, John affirmed the truth that he consistently upheld throughout his ministry: he was merely a servant in God's household (Hebrews 3:5), with Christ as the Son and Master of the house (Hebrews 3:6).