John Gills Exposition of the Bible Commentary - Exodus 17:15
And Moses built an altar ,.... On Horeb, as Aben Ezra; on the top of the hill, as Ben Gersom, where sacrifices of thanksgiving were offered up for the victory obtained, or however a monument erected in memory of it: and he called the name of it Jehovahnissi ; which signifies either "the Lord is my miracle" who wrought a miracle for them in giving them the victory over Amalek, as well as, through smiting the rock with the rod, brought out water from thence for the refreshment of the... read more
Matthew Henry's Complete Commentary - Exodus 17:8-16
We have here the story of the war with Amalek, which, we may suppose, was the first that was recorded in the book of the wars of the Lord, Num. 21:14. Amalek was the first of the nations that Israel fought with, Num. 24:20. Observe, I. Amalek's attempt: They came out, and fought with Israel, Exod. 17:8. The Amalekites were the posterity of Esau, who hated Jacob because of the birthright and blessing, and this was an effort of the hereditary enmity, a malice that ran in the blood, and perhaps... read more