And the light of Israel shall be for a fire, and his Holy One for a flame: and it shall burn and devour his thorns and his briers in one day;

ISAIAH 10:17KJV
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Isaiah 10:17 (KJV)

What does Isaiah 10:17 mean?

Isaiah 10:17 says that God, described as the "light of Israel" and "his Holy One," will act like a fire and a flame to burn up and completely destroy the "thorns and briers"—symbols of Israel's enemies or obstacles—in a single day. The verse promises a swift and total judgment against those opposing Israel, showing God's power to protect and purify His people.

In this part of Isaiah, the prophet is speaking to the people of Judah about God's coming judgment on Assyria, a nation that had threatened and oppressed them. The verse uses vivid imagery to show that God Himself will become a consuming force, removing everything harmful or hostile to His people. This is part of a larger message where Isaiah reassures Israel that, despite present troubles, God will ultimately defend and restore them.

The Hebrew behind Isaiah 10:17

  • "Light" (אוֹר, 'or, H216) refers to brightness or illumination, here symbolizing God's presence and guidance for Israel.
  • "Fire" (אֵשׁ, 'esh, H784) and "flame" (לֶהָבָה, lehabah, H3852) both stress the idea of intense, consuming power. In this context, they highlight God's ability to destroy threats completely.
  • "Thorns" (שָׁמִיר, shamir, H7898) and "briers" (שַׁיִת, shayit, H8068) are often used in the Hebrew Bible as symbols for worthless, troublesome, or hostile elements—here, likely the enemies of Israel.
  • "Burn" (בָּעַר, ba'ar, H1197) and "devour" (אָכַל, akal, H398) both emphasize total destruction, not just damage or harm.

Why Isaiah 10:17 matters

  • Isaiah 10:17 clarifies that God's judgment is not just a distant or impersonal act; God Himself is directly involved as the source of deliverance and destruction.
  • The verse connects to the wider passage by showing that Assyria's power is temporary and subject to God's greater authority, offering hope to those who feel overwhelmed by enemies.
  • The use of "one day" (יוֹם אֶחָד, yom echad, H3117, H259) stresses the suddenness and completeness of God's intervention, countering any fear that evil will last forever.

Where else these words appear

“thorns” Hebrew H7898 · used in 7 verses

  • Isaiah 5:6 And I will lay it waste: it shall not be pruned, nor digged; but there shall come up briers and thorns: I will also command the clouds that they rain no rain upon it.
  • Isaiah 7:24 With arrows and with bows shall men come thither; because all the land shall become briers and thorns.
  • Isaiah 9:18 For wickedness burneth as the fire: it shall devour the briers and thorns, and shall kindle in the thickets of the forest, and they shall mount up like the lifting up of smoke.

“briers” Hebrew H8068 · used in 11 verses

  • Isaiah 5:6 And I will lay it waste: it shall not be pruned, nor digged; but there shall come up briers and thorns: I will also command the clouds that they rain no rain upon it.
  • Isaiah 7:25 And on all hills that shall be digged with the mattock, there shall not come thither the fear of briers and thorns: but it shall be for the sending forth of oxen, and for the treading of lesser cattle.
  • Isaiah 32:13 Upon the land of my people shall come up thorns and briers; yea, upon all the houses of joy in the joyous city:

“flame” Hebrew H3852 · used in 19 verses

  • Numbers 21:28 For there is a fire gone out of Heshbon, a flame from the city of Sihon: it hath consumed Ar of Moab, and the lords of the high places of Arnon.
  • Isaiah 4:5 And the LORD will create upon every dwelling place of mount Zion, and upon her assemblies, a cloud and smoke by day, and the shining of a flaming fire by night: for upon all the glory shall be a defence.
  • Ezekiel 20:47 And say to the forest of the south, Hear the word of the LORD; Thus saith the Lord GOD; Behold, I will kindle a fire in thee, and it shall devour every green tree in thee, and every dry tree: the flaming flame shall not be quenched, and all faces from the south to the north shall be burned therein.

“burn” Hebrew H1197 · used in 90 verses

  • Exodus 3:2 And the angel of the LORD appeared unto him in a flame of fire out of the midst of a bush: and he looked, and, behold, the bush burned with fire, and the bush was not consumed.
  • 2 Samuel 22:9 There went up a smoke out of his nostrils, and fire out of his mouth devoured: coals were kindled by it.
  • Isaiah 30:33 For Tophet is ordained of old; yea, for the king it is prepared; he hath made it deep and large: the pile thereof is fire and much wood; the breath of the LORD, like a stream of brimstone, doth kindle it.