The Church Fathers on this verse

Isaiah 10:17Meaning & Commentary from the Church Fathers

And the light of Israel shall be as a fire, and the Holy One thereof as a flame: and his thorns and his briers shall be set on fire, and shall be devoured in one day.

Douay-Rheims

וְהָיָ֤ה אֽוֹר־יִשְׂרָאֵל֙ לְאֵ֔שׁ וּקְדוֹשׁ֖וֹ לְלֶהָבָ֑ה וּבָעֲרָ֗ה וְאָֽכְלָ֛ה שִׁית֥וֹ וּשְׁמִיר֖וֹ בְּי֥וֹם אֶחָֽד׃

Hebrew (Masoretic text)

The Church Fathers on this verse

5 Church Fathers comment on this verse

Cyrill of Alexandria

5th centuryChurch Father

The passages we are examining can be quite challenging to grasp due to the complexity of their structure. However, we will endeavor to unpack the underlying meaning. To provide context, we note that when Sennacherib, the Assyrian king, captured Samaria, he dispatched Rabsak from Lachish to Jerusalem. Upon arrival and during the siege, Rabsak conveyed the orders he received, along with his own blasphemies against the Lord, declaring that God would not save Jerusalem from the Assyrian king's hand. Angered by these statements, King Hezekiah prayed fervently to God, imploring, “Hear, O Lord, look, O Lord, and see the words of Rabsak, which the king of Assyria has sent to rebuke the living God” (Isaiah 36:17). In response, God promised deliverance.

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That very night, the angel of the Lord struck down one hundred and eighty-five thousand Assyrians (Isaiah 37:36). Following this event, the Assyrian forces were consumed by an overwhelming terror. Upon learning that Sarsapha, the king of Ethiopia, was invading his territory, Sennacherib fled Judea in a desperate retreat, accompanied by his diminished troops.

The prophetic message is introduced, clarifying this situation. The Lord, who is the light for Israel, bestowed the law that enlightens; however, this light is only for Israel, while the Assyrian armies face a consuming fire instead. God’s attention to the citizens of Jerusalem marks them as His holy people, as evidenced by the destructive fire that raged among the Assyrians. This is encapsulated in the phrase that expresses how He shall sanctify it with burning fire. When referred to as sanctified, it implies a chosen purpose for God's glory rather than an attainment of perfect holiness. This mirrors the directive given to Moses: “Sanctify unto Me every firstborn that openeth the womb, the male to the Lord” (Ex. 13:2). Here, the term sanctify communicates separation. Thus, the Lord indicates that He will set apart Israel, His devoted and chosen people, by means of a burning fire—the swift destruction that befell the Assyrian army. The fire symbolizes their sudden demise; had He not regarded this people as His own, He would not have ignited a blaze that obliterated the Assyrian host like dry grass or timber.

Basil the Great

4th centuryChurch Father

The Light of Israel will be present in the fire, signifying a transformation in circumstances. Israel, once humbled and subjected to punishment for sin, will rise and shine forth. Thus, His glory will ultimately lead to your destruction. It is written, "The Light of Israel shall be put into the fire." Fire embodies dual purposes; it provides light and causes destruction. The delightful and beneficial elements within the fire will remain with Israel, illuminating and enriching them, while the harmful and poisonous elements will be cast aside, harming the proud and subjecting them to eternal suffering. "And he shall sanctify it with burning fire, and make it like hay." The prophet illustrates the purifying nature of fire.

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"He shall sanctify him," signifies "with burning fire." But when will this sanctification of fire occur? When the "substance is as hay." Hence, since "our God is a consuming fire" (Deuteronomy 4:24), it becomes clear that He will consume the essence, purging the passions that emerge within the soul, which operates not by the spirit, but by the flesh. Scholars who meticulously analyze the meaning of words have observed a distinction between the terms "good opinion" (δόξα) and "glory" (κλεός), noting that the former reflects popular praise, while the latter denotes the commendation of the virtuous. Similarly, they differentiate types of honor, recognizing that there is rightful honor, a reflection of esteem and is granted to those deserving respect (with such esteem perceived as a reward for virtue), as well as honor bestowed by the unworthy for actions that do not merit true approval.

Jerome of Stridon

4th centuryChurch Father

The radiance of Israel, also known as the Holy One, will arise in flames and fire, and all the thorns and wolfberries representing evil in Assyria will be eradicated suddenly, without delay. The Holy One of Israel, referring to the Lord Himself, will consume the thorns and thistles of Assyria, along with all its might and countless nations, reducing them to nothing. Furthermore, rather than stating that we should "holy him in the flames," it has been rendered as "sanctify him in the fire," which some interpret as suggesting that sinners endure punishment and suffering so they may be refined by Divine fire.

Ambrose of Milan

4th centuryChurch Father

Isaiah indicates that the Holy Spirit embodies not only illumination but also purification, declaring, "The light of Israel shall be fire." He prophetically portrays Him as a fervent flame, as these three aspects help us to grasp the Divine glory. To sanctify is an attribute of the Divine nature, and both illuminating and purifying are inherent qualities of fire and light, making it customary for the Divine to be depicted in the form of fire. Indeed, God is a consuming fire, as stated by Moses.

Vissarion (Nechaev)

19th centuryCommentator

The Lord God of Israel, referred to as the light of Israel, bestowed His grace upon His chosen people, guiding them through His commandments and extraordinary revelations. He visibly led them in the form of a pillar of fire during their forty-year sojourn in the wilderness (Ex. 13:21). When the Egyptians pursued the Israelites at the Red Sea, this pillar provided light to the Israelites on one side while shielding them from the Egyptians' wrath with its darkness on the other (Ex. 14:26). Similarly, when the Assyrian forces approach Jerusalem, the Lord will manifest as fire and sanctify Israel, rendering it a sacred refuge impervious to its enemies while simultaneously binding those adversaries as if they were merely dry hay. This is why He is known as a consuming fire (Deuteronomy 9:3).

Cross references

Passages read together with this verse.