The promiss of a return is in Hosea 14.
1 Return, O Israel, to the LORD your God, for you have stumbled because of your iniquity. 2 Take with you words and return to the LORD; say to him, “Take away all iniquity; accept that which is good and we will render the fruit of our lips. 3 Assyria shall not save us, we will not ride upon horses; and we will say no more, ‘Our God,’ to the work of our hands. In thee the orphan finds mercy.”
God’s call to “Return” is in the continual tense in the Hebrew. Meaning that He never gives up on this call to return to Him [Song 6:13]. However their “stumble” is over and done. They had stumbled into the worship of the work of their hands i.e. idols. It is not a permanent condition they just need to pick themselves up and start walking back.