Genesis 19:34

34 And it came to pass on the morrow, that the elder said to the younger, Behold, I slept yesternight with our father, let us make him drink wine in this night also, and do thou go in and sleep with him, and let us raise up seed of our father.

Genesis 19:34 Meaning and Commentary

Genesis 19:34

And it came to pass on the morrow
The day following the night, in which the above was transacted: that the firstborn said to the younger, behold, I lay yesternight with
my father;
informed her, that what they had contrived succeeded according to their wish, and therefore, for her encouragement to go on, proposes to take the same method again: let us make him drink wine this night also, and go thou in [and] lie
with him, that we may preserve seed of our father;
may have children by him, and so our family be kept up, from whence it may be hoped the Messiah will spring, (See Gill on Genesis 19:32).

Genesis 19:34 In-Context

32 Come and let us make our father drink wine, and let us sleep with him, and let us raise up seed from our father.
33 So they made their father drink wine in that night, and the elder went in and lay with her father that night, and he knew not when he slept and when he rose up.
34 And it came to pass on the morrow, that the elder said to the younger, Behold, I slept yesternight with our father, let us make him drink wine in this night also, and do thou go in and sleep with him, and let us raise up seed of our father.
35 So they made their father drink wine in that night also, and the younger went in and slept with her father, and he knew not when he slept, nor when he arose.
36 And the two daughters of Lot conceived by their father.

The Brenton translation of the Septuagint is in the public domain.