The enemy shall not outwit him; nor the son of wickedness afflict him.
Read Chapter 89
Augustine of Hippo
22. "The enemy shall not be able to do him violence" (ver. 22). The enemy rages indeed but he shall not be able to do Him violence: he is wont to hurt, but he shall not hurt. How then shall he afflict Him? he will exercise Him, but he shall not hurt Him. There shall be profit in his raging; for those against whom he rages shall be crowned in their conquering. For how is he conquered, if he rages not against us? or where is God our helper, if we fight not? The enemy therefore shall do what is in his power; but "he shall not be able to do Him violence: the son of wickedness shall not come nigh to hurt Him." ...