Charles H. Spurgeon on Psalms 44:16

For the voice of him that reproacheth and blasphemeth. It seems that from mocking the people of God, the adversaries advanced to reviling God himself, they proceeded from persecution to the sin which is next of kin, namely blasphemy. By reason of the enemy and avenger. The enemy boasted of avenging the defeats of their forefathers; they took revenge for the ancient victories of Israel, by insulting over the now fallen people. Here was a sad plight for a nation to be placed in, but it was by no means a hopeless case, for the Lord who brought all this evil upon them could with equal ease release them from it. So long as Israel looked alone to her God, and not to her own arm, no foe could retain her beneath his foot; she must arise, for God was on her side.