Jeremiah 3:21

Upon the high places - Upon those bare table-lands, which previously had been the scene of Israel’s idolatries Jeremiah 3:2. The prophet supposes the offer of mercy to Israel if repentant to have been accepted, and describes Israel’s agony of grief now that she is convinced of her sins.

Weeping and supplications - literally, “the weeping of earliest prayers for mercy.”

For they have ... - Rather, because “they hare perverted their way,” literally, made it crooked. It gives the reason of their cry for mercy.