The scope of this paragraph is the same with that of the last, to show that sin is the great mischief-maker; as it is that which keeps good things from us, so it is that which brings evil things upon us. But as there it is spoken by the prophet, in God's name, to the people, for their conviction and humiliation, and that God might be justified when he speaks and clear when he judges, so here it seems to be spoken by the people to God, as an acknowledgment of that which was there told them and an expression of their humble submission and subscription to the justice and equity of God's proceedings against them. Their uncircumcised hearts here seem to be humbled in some measure, and they are brought to confess (the confession is at least extorted from them), that God had justly walked contrary to them, because they had walked contrary to him.