"Repent of the thing" which they had done

1. 1 Ne. 18: 20
   20 And there was nothing save it were the power of God, which threatened them with destruction, could soften their hearts; wherefore, when they saw that they were about to be swallowed up in the depths of the sea they repented of the thing which they had done, insomuch that they loosed me.
2. Mosiah 4: 22
   22 And if ye judge the man who putteth up his petition to you for your substance that he perish not, and condemn him, how much more just will be your condemnation for withholding your substance, which doth not belong to you but to God, to whom also your life belongeth; and yet ye put up no petition, nor repent of the thing which thou hast done.