Because the Lord hath sworn that the Lord will have war with Amalek. — Heb,, because (his) hand is against the throne of Jehovah, (there shall be) war to Jehovah with Amalek, &c. The Hebrew can scarcely be said to be “obscure.” It gives plainly enough the sense which our translators have placed in the margin. Amalek, by attacking Israel, had lifted up his hand against the throne of God, therefore would God war against him from generation to generation.
Related Commentaries of Exodus 17:16
Exodus 17:16
16 For he said, Because the LORD hath sworn that the LORD will have war with Amalek from generation to generation.