Matthew 13:31Meaning & Commentary from the Church Fathers

He found all the paths of wisdom and gave it to His servant Jacob and to His beloved Israel. Afterward, He appeared on earth and conversed among men" (Baruch 3:36-38). Isaiah also speaks of Him in a similar light, stating, "The labors of the Egyptians, and the commerce of the Ethiopians, and the Shebaites, the tall men shall come over to you, and shall belong to you; they shall follow you, and shall come in chains, and shall be cast down before you, and shall plead with you, saying, ‘You have God only, and there is no other God. Truly, you are the hidden God, the God of Israel, the Savior’" (Isaiah 45:14-15). Blessed Peter echoes this sentiment: "There is no other name under heaven given among men by which we must be saved" (Acts 4:12).

In the mystery of the Incarnation, Christ exemplifies humility, and David articulates this by saying, "What is man that You remember him, and the son of man that You visit him? You have made him a little lower than the angels; with glory and honor, You crowned him" (Psalm 8:5-6). Paul clarifies that these words of David refer to Christ, stating, "Jesus was crowned with glory and honor for enduring death, who was not greatly humbled before angels" (Hebrews 2:9). In a similar manner, Christ seemed small when compared to humanity. Isaiah further describes Him: "There was no beauty or majesty in Him; when we beheld Him, there was nothing in His appearance that attracted us to Him... He was despised and rejected by men" (Isaiah 53:2-3). Hence, He referred to Himself as a worm, proclaiming, "I am a worm, and not a man" (Psalm 22:7). In Isaiah, the Father addresses Him as "Fear not, O worm Jacob" (Isaiah 41:14). The same prophet notes His glorious conclusion, stating, "And your covering is a worm" (Isaiah 14:11). Indeed, it was essential that He, like a wise fisherman, should encase the radiant rod of His divinity, like lightning, with the worm of flesh, casting it into the depths of this life to catch the serpent, fulfilling what is written in Job: "Shall you draw out the serpent with a hook?" (Job 40:20).

Thus, how can the Kingdom of Heaven be both the mustard seed and something great at once? In His boundless love for creation, He embodies everything to save all. He remains God in essence, yet He took on human form for our salvation. "Oh, the depth of the riches and wisdom and knowledge of God! How unsearchable are His judgments and His ways past finding out!" (Romans 11:33). Oh, the Grain through which the world was made, the Grain that dispelled darkness and restored the Church! This Grain, hanging on the Cross, wielded such power that, while bound, it was raised into the paradise of delight by the words of a thief. This Grain, pierced by a spear, granted those yearning for life the gift of immortality. This Mustard Seed, uprooted from the tree and planted in the garden, spread its branches wide, overshadowing the heavens; it took root in hell and retrieved the souls, ushering them into heaven on the third day. This Mustard Seed, crushed upon the tree, vanquished our adversary the serpent, awakening hell and compelling it to fulfill its destined role. So, "The kingdom of heaven is like a grain of mustard seed, which a man took and sowed in his field." Plant this mustard seed in the garden of your soul, so that you too may proclaim, "Come up, O wind, from the north, and come from the south, blow upon my garden, and let its fragrances flow!" (Song of Solomon 4:16). If this mustard seed takes root in your soul's garden, the prophet will declare, "And you shall be like a garden watered by springs, like a fountain whose waters never fail" (Isaiah 58:11). As you embrace its essence, it will be said of you, "The fragrance of your garments is like the aroma of Lebanon"; meaning, your very being becomes a sweet incense. "A locked garden is my sister, my bride, a secluded well, a sealed spring" (Song of Solomon 4:12-13). This grain of mustard seed, crushed on the Cross, serves as leaven, introduced into "three measures of flour," representing soul, body, and spirit, thereby leavening all of mankind with a single faith. The symbolism of this sacrament was illustrated by Abraham and Sarah, who dwelt in a tent beneath the oak of Mamre.

The sower in the field is commonly understood to represent the Savior, who plants seeds in the hearts of believers. Others see this figure as a person who tends to their own field—inner self and heart. Who is this sower if not the mind and spirit, which, after receiving the seed of the Gospel and nurturing it with faith, allows it to rise within their hearts? The preaching of the Gospel is described as the smallest of all teachings (cf. Matt. 13:32). At first glance, the truth in a message that declares God through man, Christ through His death, and the allure of the cross seems dubious. When compared to the doctrines of philosophers, their writings, and their eloquent speeches, it becomes clear that the seed of the Gospel appears less significant than those other seeds. However, once those seeds take root, they yield nothing vibrant or life-giving; rather, they result in meager herbs and grasses that quickly perish. Yet, the proclamation of the Gospel, which may initially appear trivial, when sown in the believer's heart or in the world, transforms into a robust tree. In its branches find refuge the birds of the air, symbolic of the souls of believers or divine forces dedicated to God’s service.

However, when nurtured, it flourishes through the infusion of the Holy Spirit, surpassing all other teachings and elevating itself above everything else. In this parable, the Lord anticipates the expansion of the Gospel's message. Previously, we have discussed the sower and the field in another parable. The field represents the world, as it is where the wise seed is sown and nurtured. A parable can signify a narrative: "You have made us a byword among the nations" (Psalm 43:15); it may also refer to a cryptic statement: "He will understand a parable and a dark saying" (Proverbs 1:6); or it can serve as a comparison, as suggested by the parables we see here, as well as allegorical speech: "Son of man, declare the parable to the house of Israel... the great eagle..." referring to the king of Assyria (Ezekiel 17:2, Z). Lastly, it can represent both means and imagery, as when Paul (Hebrews 11:19) describes Abraham, who, having embraced the promises, offered up his only son, illustrating that in the parable, he was pleasing to God, i.e., in the image.

This serves as a reminder of perfection and growth, encouraging meekness and patience. The fiery hue of the seed symbolizes purity, provoking us to maintain our flesh untainted. Its inner bitterness inspires a disdain for worldly desires, as it is distasteful to those who seek carnal pleasures. The seed's pleasant taste is revealed only through chewing and grinding, illustrating the necessity of enduring suffering (the trials of the body through hardship). When crushed, it becomes a source of irritation to the eyes, highlighting the gravity of our actions and the discipline of ascetic effort. Furthermore, it is used to treat decayed limbs, preventing them from rotting. Therefore, let us grasp its true meaning and embrace its virtues, anointing our wounded spirits with these qualities to ensure they do not decay or become corrupt. This process shapes our being, enabling us to reflect the image of our Lord Jesus Christ. We must strive, according to our capabilities, to align ourselves with Him in the characteristics of the mustard seed, examining ourselves to see if we embody its essence—its humility, its crushing, its bitterness, and its flavor. It is through God’s mercy that we are empowered for this transformation, in accordance with His purpose. To Him be glory, Father, Son, and Holy Spirit, now and forever. Amen.

The divine Logos, O wise one, alongside His heavenly proclamation that gives birth to the kingdom, designates it as the kingdom of heaven akin to the mustard seed, the least of all seeds, yet when it flourishes, it surpasses all other plants. This signifies that from something seemingly trivial—these words may appear insignificant—it will expand to such an extent that it overshadows all Hellenistic wisdom; and indeed, this has come to pass. For the profound delusion, both in rhetoric and reasoning, has yielded to the simple truth.

The discipline of interpretation clarifies the messages conveyed to us, capturing the attention of listeners much like the soothing music of a lyre. This effect is especially notable when addressing concepts that are not commonly understood but are unfamiliar to many, and when the speaker's wisdom shines through, stirring desire in the audience because rare insights tend to be more enticing. In response to your inquiry about the comparison of the heavenly kingdom to the mustard seed, it should be noted that the sown word of divine teachings is succinct when compared to the philosophies offered by so-called sages, conveyed in brief yet simple expressions. However, as it is nurtured, the word matures, expands, and proves to be greater than any previous utterance that sparked awe, for it gives rise to truth rather than embellishing falsehood. There is nothing loftier than truth itself. This is why those who bear the title of philosophers, having abandoned their doctrines, seek to partake in the shadow of God and turn to it. How many Pythagoreans, once purveyors of pride and disgrace, have become disciples of this truth? How many Platonists, having renounced the flourishes of their rhetoric, have found refuge under its embrace? How many Aristotelians, having dismissed the wisdom that once brought them fame, have sought to align with those who adhere to this sacred message?

Thus, if you claim that only after death will those who fervently seek the kingdom of heaven attain it, you misconstrue the words of our Savior and God. If you fail to receive the mustard seed He mentioned, if you do not plant it in your field, you will ultimately be without seed. But if you have received the seed and allowed it to be suffocated by thorns, or if you have left it exposed to the birds, or if you have carelessly neglected your field, preventing your seed from sprouting, growing, or bearing fruit, then I ask you, what benefit will that seed bring you? When, if not now, will you accept that seed? You might say after death. Yet you bypass the natural order: in which field, I ask you, will you then conceal this seed? Through what effort will you nurture it to ensure its growth? Truly, my brother, you are deeply mistaken and thoroughly misled. This is the time for effort, while the future holds the promise of rewards. Here you shall receive your pledge, says the Lord; here you shall be marked. If you are wise, ignite the lamp of your soul now, before darkness descends and the doors to action are closed.

This analogy also applies to the act of preaching. Despite perceiving themselves as powerless and marginalized, the disciples possessed a profound strength within them that enabled the Gospel to spread across the entire world.

Blessed Jerome elaborates on this point, stating that the preaching of the Gospel appears minor among doctrines. Initially, it seems implausible, focusing on humanity and divinity, God’s death, and the scandal of the Cross. When you compare this message with the philosophies, adorned with elaborate language and complex theories, it becomes evident that the seed of the Gospel is indeed lesser than all these others. However, this seed does not wither away; rather, it embeds itself deeply in the soul of the believer or throughout the world, developing roots like a mighty tree. The Kingdom of God, the Kingdom of Christ on earth, or the Church, began as a seemingly insignificant entity, akin to a mustard seed, yet over time it has grown to encompass numerous nations, much like the branches of a mustard tree that provide shelter for many birds. The mustard seed’s diminutive size was so noted that it gave rise to a saying among the Jews: as small as a mustard seed. Unlike an annual plant, it is a perennial one that reaches impressive heights, allowing a person on horseback to pass beneath its branches, and it becomes a haven for flocks of birds.

Although His disciples appeared powerless and humiliated, the latent strength within them was immense, enabling the proclamation to extend throughout the entire world. The Church of Christ began small and unnoticed by society, yet it flourished so that numerous nations, like birds seeking refuge in the branches of the mustard tree, find shelter under its protection. Similarly, the kingdom of God operates within each individual’s soul; initially barely perceptible to a person, the gentle breeze of God’s grace gradually envelops their spirit, transforming it into the temple of God and a vessel for various virtues.