'Concerning' in the Bible

When God saw their actions -- they turned from their evil way of living! -- God relented concerning the judgment he had threatened them with and he did not destroy them.

He prayed to the Lord and said, "Oh, Lord, this is just what I thought would happen when I was in my own country. This is what I tried to prevent by attempting to escape to Tarshish! -- because I knew that you are gracious and compassionate, slow to anger and abounding in mercy, and one who relents concerning threatened judgment.