Genesis 18:28

28 What if there will lack five of the fifty righteous? Will you destroy all the city for lack of five?" He said, "I will not destroy it, if I find forty-five there."

Genesis 18:28 Meaning and Commentary

Genesis 18:28

Peradventure there should lack five of the fifty righteous,
&c.] Or there should be but forty five; for Abraham perceived, by the Lord's answer, that there were not fifty righteous persons in the place: wilt thou destroy all the city for [lack of] five?
Abraham proceeds gradually in his requests, and does not ask too much at once, lest he should not succeed: and he said, if l find there forty and five, I will not destroy [it];
that is, forty five righteous persons.

Genesis 18:28 In-Context

26 The LORD said, "If I find in Sedom fifty righteous within the city, then I will spare all the place for their sake."
27 Avraham answered, "See now, I have taken it on myself to speak to the Lord, who am but dust and ashes.
28 What if there will lack five of the fifty righteous? Will you destroy all the city for lack of five?" He said, "I will not destroy it, if I find forty-five there."
29 He spoke to him yet again, and said, "What if there are forty found there?" He said, "I will not do it for the forty's sake."
30 He said, "Oh don't let the Lord be angry, and I will speak. What if there are thirty found there?" He said, "I will not do it, if I find thirty there."
The Hebrew Names Version is in the public domain.