The Church Fathers on this verse

Genesis 15:17Meaning & Commentary from the Church Fathers

And when the sun was set, there arose a dark mist, and there appeared a smoking furnace, and a lamp of fire passing between those divisions.

Douay-Rheims

וַיְהִ֤י הַשֶּׁ֙מֶשׁ֙ בָּ֔אָה וַעֲלָטָ֖ה הָיָ֑ה וְהִנֵּ֨ה תַנּ֤וּר עָשָׁן֙ וְלַפִּ֣יד אֵ֔שׁ אֲשֶׁ֣ר עָבַ֔ר בֵּ֖ין הַגְּזָרִ֥ים הָאֵֽלֶּה׃

Hebrew (Masoretic text)

The Church Fathers on this verse

6 Church Fathers comment on this verse

John Chrysostom

4th centuryChurch Father

When Abraham completely embraced the prophecy and was given a clear indication of the forthcoming events, it is noted that at the setting of the sun and the onset of darkness, there appeared smoke resembling that from a furnace, alongside flames of fire moving between the sacrificed animals. These flames, the furnace, and the lights manifested so that the righteous man could grasp the steadfastness of the covenant made with him and witness the workings of God's might in this moment.

Cyrill of Alexandria

5th centuryChurch Father

It is narrated that as the sun set, smoke appeared as if from a furnace, and flames flickered between the sacrificial animals. This representation of fire signifies the Divine, in accordance with the practices of the Chaldeans, affirming a sacred oath. When Abraham was forewarned of the suffering and miraculous rescue that awaited his descendants in Egypt, particularly Israel, it is noted: “The sun went down, and darkness came on; behold, smoke as it were from a furnace, and flames of fire passed between the slain.” Before the promises came to fruition, the law given through Moses radiated forth, containing long accounts of the Israelites' enslavement and their subsequent liberation. In the latter days, as dusk approached, “the Word was made flesh” (John 1:14).

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This signifies that the Divine essence, portrayed in the form of fire, passed between the severed animals. The presence of smoke, a furnace, and flames illustrates the profound mystery of the Incarnation, which was indeed created for those who lacked belief and were prone to rebellion—these were the furnace and flame, embodying the most severe of punishments. Concerning the Israelites, who foolishly offended the mystery of Christ, David addressed the Father and God, stating: “Put them like a furnace of fire in the time of Thy face: Lord, by Thy wrath will I be crushed, and the fire will consume them” (Ps. 20:10). The term “the time of the face of the Father” refers aptly to the period of His humanity, with the Son being both the Person and the likeness of God and the Father. To those who recognize “His appearing,” as stated (2 Tim. 4:8), He will shine as a beacon in darkness, illuminating the shadows cast by the adversary, preventing His followers from stumbling over the trials they face. Thus, God and the Father called upon the Son through the prophet Isaiah, declaring: “I will not be silent for Zion's sake, and for Jerusalem's sake I will not rest, until his righteousness and his salvation shall rise like a light, like a burning lamp” (Isaiah 62:1). The salvation and righteousness from God the Father are realized through the Son, as in Him we find justification and, overcoming death's dominion since the beginning, return to a state of incorruption, becoming transformed into the original condition of our nature.

Ephraem the Syrian

4th centuryChurch Father

Through the fiery furnace descending from the heavens, God was revealing that deliverance would be given from above when none among the Jews were found to be righteous.

Caesarius of Arles

6th centuryChurch Father

Brethren, observe that while the fire passes between the divided animals, it does not pass between the turtledove and the dove. This evening serves as a metaphor for the end of time, and the animals represent all the nations that believe in Christ. It is important to note that within these nations, there exist not only the righteous but also those engaged in vice. Thus, the animals were partitioned, and the fire traversed between the severed pieces. This smoking furnace and the flame represent the day of judgment, bringing forth the dread and profound darkness experienced by the blessed Abraham. If the righteous are scarcely saved on the day of reckoning, what fate awaits the wicked and the sinful?

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The smoking furnace and the flame signify the day of judgment—a day characterized by weeping and gnashing of teeth. On that day, there will be lamentation and sorrow, coupled with late repentance; the foundations of the mountains will tremble, and the earth will ignite with fire that reaches to the depths of hell.

Therefore, in order to avoid enduring such torment, let us awaken while there is still time to amend our ways, and as faithful servants, strive to fulfill the will of our Lord. Then, when that fearsome day of judgment arrives—dreadful even for the righteous, as suggested by the burning and smoking furnace—we shall not suffer torment in hell alongside the unrepentant, whose souls, torn by various desires, are symbolized by these animals. Instead, let us embody the innocence of a dove and the purity of a turtledove so that we might ascend to the heavens on the spiritual wings of virtue. As the Apostle states: Then we who are still alive will be caught up together with them in the clouds to meet the Lord in the air, and we will always be with the Lord—by the grace of our Lord Jesus Christ, to whom be honor and glory with the Father and the Holy Spirit, forever and ever. Amen.

Philaret of Moscow (Drosdow)

19th centuryChurch Father

Behold the smoke resembling that of a furnace and a blazing lamp. This unique manifestation of God likely has a cause; the smoke from the furnace likely represents the oppression of God’s people foretold here, which in other parts of Scripture is depicted as a furnace of iron (Deuteronomy 4:20, Jeremiah 11:4). The lamp of fire symbolizes their liberation and salvation, something Isaiah also compares to a light (Isaiah 62:1). The movement of these images between the divided animals signifies the solemn act of entering into a covenant.

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Some suggest that Abram was instructed to walk between the severed pieces either before or after this vision as part of the covenant rite; however, this theory is not supported by the author's silence on the matter and the fact that Abram was in a state of distress at that moment. It seems that the vision itself illustrates both parties entering into the covenant—Abram's vulnerable people represented as a tribe in a fiery furnace of smoke, and God, the Liberator, depicted as a radiant lamp of fire.

Didymus the Blind

4th centuryTeacher of the Church

The straightforward and direct interpretation of this verse can be articulated in the following manner. As evening drew near, and the sun had set, a flame appeared along with smoke resembling that of a furnace, while fiery lamps moved between the sacrificed animals, illuminating the surroundings. This was so that the patriarch could witness the events unfolding, allowing divine visions to emerge that required careful observation. It is essential to recognize that fire not only manifested during this covenant-making but also accompanied the giving of the Law through Moses. Indeed, the Israelites witnessed the flames and heard the commandments but did not see the One who spoke.

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This may suggest that since the Law contains both blessings and curses, its delivery amidst fire indicates that it can ignite punishment for some while providing guidance and enlightenment for others. Fire possesses a dual nature: it both lights the way and causes destruction. Similarly, the divine law scorches those who stray from its path while illuminating those who uphold it. The lamps and smoke played a role as well: the smoke arises from the flames, as though it is their accompaniment, with the flame appearing first. In closing, it is important to recognize that one who must determine the right course of action in such challenging circumstances requires divine wisdom and reverence, which is symbolically represented by the furnace, to ensure that decisions align with sound judgment.

Cross references

Passages read together with this verse.