Psalm 138:1-8 and Genesis 18:20-32

Psalm 138:1-8
1 Of David himself. O Lord, I will confess to you with my whole heart, for you have heard the words of my mouth. I will sing psalms to you in the sight of the Angels.
2 I will adore before your holy temple, and I will confess your name: it is above your mercy and your truth. For you have magnified your holy name above all.
3 On whatever day that I will call upon you: hear me. You will multiply virtue in my soul.
4 May all the kings of the earth confess to you, O Lord. For they have heard all the words of your mouth.
5 And let them sing in accordance with the ways of the Lord. For great is the glory of the Lord.
6 For the Lord is exalted, and he looks with favor on the humble. But the lofty he knows from a distance.
7 If I wander into the midst of tribulation, you will revive me. For you extended your hand against the wrath of my enemies. And your right hand has accomplished my salvation.
8 The Lord will provide retribution on my behalf. O Lord, your mercy is forever. Do not disdain the works of your hands.
Genesis 18:20-32
20 And so the Lord said, "The outcry from Sodom and Gomorrah has been multiplied, and their sin has become exceedingly grievous.
21 I will descend and see whether they have fulfilled the work of the outcry that has reached me, or whether it is not so, in order that I may know."
22 And they turned themselves from there, and they went toward Sodom. Yet in truth, Abraham still stood in the sight of the Lord.
23 And as they drew near, he said: "Will you destroy the just with the impious?
24 If there were fifty of the just in the city, will they perish with the rest? And will you not spare that place for the sake of fifty of the just, if they were in it?
25 Far be it from you to do this thing, and to kill the just with the impious, and for the just to be treated like the impious. No, this is not like you. You judge all the earth; you would never make such a judgment."
26 And the Lord said to him, "If I find in Sodom fifty of the just in the midst of the city, I will release the entire place because of them."
27 And Abraham responded by saying: "Since now I have begun, I will speak to my Lord, though I am dust and ashes.
28 What if there were five less than fifty of the just? Would you, despite the forty-five, eliminate the entire city?" And he said, "I will not eliminate it, if I find forty-five there."
29 And again he said to him, "But if forty were found there, what would you do?" He said, "I will not strike, for the sake of the forty."
30 "I ask you," he said, "not to be angry, Lord, if I speak. What if thirty were found there?" He responded, "I will not act, if I find thirty there."
31 "Since now I have begun," he said, "I will speak to my Lord. What if twenty were found there?" He said, "I will not put to death, for the sake of the twenty."
32 "I beg you," he said, "not to be angry, Lord, if I speak yet once more. What if ten were found there?" And he said, "I will not destroy it for the sake of the ten."