Psalm 44:5-8

5Through you we push back our enemies; through your name we trample our foes.

6I put no trust in my bow, my sword does not bring me victory;

7but you give us victory over our enemies, you put our adversaries to shame.

8In God we make our boast all day long, and we will praise your name forever. The Hebrew has Selah (a word of uncertain meaning) here.