Psalms 132:11-12

¹¹The Lord swore (in) truth to David, and he shall not make him in vain; Of the fruit of thy womb I shall set on thy seat. (The Lord swore truthfully to David, and he did not say in vain, I shall put the fruit of thy womb upon thy throne.)

¹²If thy sons shall keep my testament; and my witnessings, these which I shall teach them. And the sons of them till into the world; they shall set on thy seat. (And if thy sons shall keep my covenant, and obey my teachings, which I shall teach them; then their sons shall sit on thy throne forever.)