Isaiah 1:24 - Joseph Benson’s Commentary on the Old and New Testaments

Ah, I will ease me, &c. This is an expression borrowed from men's passions, who find some sort of ease and rest in their minds upon venting their anger on just occasions, or in bringing offenders to condign punishment. Thus God, speaking after the manner of men, represents himself as feeling satisfaction in executing justice upon obstinate and incorrigible offenders. Compare Ezekiel 5:13; Ezekiel 16:42; Ezekiel 21:17. But let it be observed, God is never said to take pleasure in the punishment of any, but those who have filled up the measure of their iniquities.