Psalm 132:11 in the King James Version
The LORD hath sworn in truth unto David; he will not turn from it; Of the fruit of thy body will I set upon thy throne.
Context
10 For your servant David’s sake, don’t turn away the face of your anointed one.
11 The LORD has sworn to David in truth. He will not turn from it: “I will set the fruit of your body on your throne.
12 If your children will keep my covenant, my testimony that I will teach them, their children also will sit on your throne forever more.”