NET
2 From the mouths of children and nursing babies you have ordained praise on account of your adversaries, so that you might put an end to the vindictive enemy.
Darby
2 Out of the mouth of babes and sucklings hast thou established praise because of thine adversaries, to still the enemy and the avenger.
KJV
2 Out of the mouth of babes and sucklings hast thou ordained strength because of thine enemies, that thou mightest still the enemy and the avenger.