“He put on righteousness as his breastplate, and the helmet of salvation on his head; he put on the garments of vengeance and wrapped himself in zeal as in a cloak.”
This is Isaiah 59:17!
Christians forget that and only recall later in Eph. 6 when Paul applies the Warrior aspect of our faith to us personally.
But what is important to remember is that The Lord is a Warrior…I think that we, Christians today, forget this. It is still true tody!
Check out Ex. 15:3, Isa. 42:13
Here is a cool document I found that shows how God, The Divine Warrior applies today and in the New Testament