Ps 98:8

“"You heard them," he says, "O Lord our God: You were forgiving to them, O God" [Psalm 99:8]. God is not said to be forgiving toward anything but sins: when He pardons sins, then He forgives. And what had He in them to punish, so that He was forgiving in pardoning them? He was forgiving in pardoning their sins, He was also forgiving in punishing them. For what follows? "And punished all their own affections." Even in punishing them You were forgiving toward them: for not in remitting, but also in punishing their sins, have You been forgiving. Consider, my brethren, what he has taught us here: attend. God is angry with him whom, when he sins, He scourges not: for unto him to whom He is truly forgiving, He not only remits sins, that they may not injure him in a future life; but also chastens him, that he delight not in continual sin.”