Judges 8:19
And he said, They were my brothers, even the sons of my mother: as the LORD lives, if you had saved them alive, I would not slay you.
Torrey's Topical Textbook—AKJV

Ruth 3:13
Tarry this night, and it shall be in the morning, that if he will perform to you the part of a kinsman, well; let him do the kinsman's part: but if he will not do the part of a kinsman to you, then will I do the part of a kinsman to you, as the LORD lives: lie down until the morning.
Torrey's Topical Textbook—AKJV