What Does Exodus 15:3 Mean?

"The LORD is a man of war; the LORD is his name." Verse 3 is the theological thesis of the divine-warrior tradition in the Old Testament: YHWH is a man of war (Hebrew: ish milchamah, a warrior/man of battle). The declaration is not a image about YHWH's "fighting spirit" but a direct theological claim: in the domain of combat and military power, YHWH is the supreme actor. The sea crossing demonstrates this claim: the premier military force of the ancient world (Egypt's chariot corps) is destroyed without Israel firing a single weapon. The "man of war" who fought at the sea fought alone. Israel simply watched.

"The LORD is his name": the pairing of the divine-warrior title ("man of war") with the divine covenant name (YHWH) is the song's theological equation: the covenant deity of Israel is identical with the universal warrior who defeats armies. There is no separation between the personal relational God who makes covenants (YHWH at the burning bush) and the divine warrior who destroys armies (YHWH at the sea). Isaiah develops the divine warrior tradition extensively (Isaiah 42:13: "The LORD goes out like a great man, like a man of war he stirs up his zeal; he cries out, he shouts aloud") as the basis for the new exodus hope.

The "man of war" title creates the theological tension that Revelation 19:11-16 resolves in its divine-warrior Christology: "He is clothed in a robe dipped in blood, and the name by which he is called is The Word of God... From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron." The Lamb who is also the Lion (Revelation 5:5-6) is the New Testament's own version of the Exodus 15:3 tension: the God of covenant love who is simultaneously the warrior who defeats evil. Both are YHWH; both are his name.