You brought your people Israel out of the land of Egypt with signs and wonders, with a strong hand and outstretched arm, and with great terror.
Jeremiah comes now nearer to the point in hand; for, after having spoken of the unequalled power of God, he now extols his righteous judgment in inflicting punishment on an ungodly and wicked people. For this end he refers to the favor of redemption, and he then adds that the land had been given to Israel which had been promised to their fathers.
We have here Jeremiah's prayer to God upon occasion of the discoveries God had made to him of his purposes concerning this nation, to pull it down, and in process of time to build it up again, which puzzled the prophet himself, who, though he delivered his messages faithfully, yet, in reflecting upon them, was greatly at a loss within himself how to reconcile them...
Commenting on Jeremiah 32:16-25
And hast given them this land, which thou didst swear to their fathers to give them,.... Abraham, Isaac, and Jacob; so that God was faithful to his word, kept his covenant and oath; and the faithfulness of God is observed and acknowledged by the prophet, along with other perfections of God before taken notice of.