" God will delight to show them mercy, will reckon their conversion a return for all the expense he has been at upon them. There is always joy in heaven. God rejoiceth in all his works, but particularly in the works of his grace. He rejoiceth to do good to penitent sinners, with his whole heart and his whole soul. He rejoiceth not only in the conversion of churches and nations, but even over one sinner that repenteth, though but one. "

― Matthew Henry , Matthew Henry's Commentary on the Whole Bible: Complete and Unabridged in 6 Volumes