GEN 19:34

34 And the tother day the more daughter said to the less, or the younger (one), Lo! I slept yesterday with my father; give we to him to drink wine also in this night; and thou sleep with him, that we save the seed of our father. (And the next day the elder daughter said to the younger one, Behold! yesterday I slept with my father; tonight we shall also give him some wine to drink, and then thou sleep with him, so that we shall most assuredly save our father’s seed, or our father’s family.)