Albert Barnes Commentary Judges 2:18

"And when Jehovah raised them up judges, then Jehovah was with the judge, and saved them out of the hand of their enemies all the days of the judge: for it repented Jehovah because of their groaning by reason of them that oppressed them and vexed them." — Judges 2:18 (ASV)

It repented the Lord - Rather, “the Lord was moved with compassion,” or “was grieved,” “because of their groanings.” .