And he spoke unto him yet again—literally, and he added yet to speak to him (cf. Genesis 4:2; Genesis 8:10, Genesis 8:12; Genesis 25:1) and said (increasing in his boldness as God abounded in his grace), Peradventure there shall be forty found there.
Does Abraham hesitate to add the query, "Wilt thou also?" &c; as if fearing he had at last touched the limit of the Divine condescension. If so, he must have been surprised by the continued gracious response which his supplication received.
And he said, I will not do it for forty's sake.