NET
21 Indeed, God strikes the heads of his enemies, the hairy foreheads of those who persist in rebellion.
Darby
21 Verily God will smite the head of his enemies, the hairy scalp of him that goeth on still in his trespasses.
KJV
21 But God shall wound the head of his enemies, [and] the hairy scalp of such an one as goeth on still in his trespasses.