The best comment on this verse is the apostle's general observation, If God be for us, who can be against us? Jesus is both a Sun and a Shield; and no weapon formed against his people can prosper. Romans 8:31.
Related Commentaries of Psalms 76:3
Psalms 76:3
3 There brake he the arrows of the bow, the shield, and the sword, and the battle. Selah.