Return, ye backsliding children, and I will heal your backslidings. Behold, we come unto thee; for thou art the LORD our God.
Return, ye backsliding children - Yahweh's renewed invitation (Jeremiah 3:12; Jeremiah 3:14) and their immediate response.
Heal - forgive (2 Chronicles 30:18; 2 Chronicles 30:20; Hosea 14:4, "I will heal their backsliding, I will love them, freely").
Behold, we come unto thee - rather, 'in obedience to thee;' literally, for thee (Rosenmuller.)