וירא: אברהם וסדום

The men set out from there and looked down toward Sodom, Abraham walking with them to see them off. Now the LORD had said, “Shall I hide from Abraham what I am about to do, since Abraham is to become a great and populous nation and all the nations of the earth are to bless themselves by him? For I have singled him out, that he may instruct his children and his posterity to keep the way of the LORD by doing what is just and right, in order that the LORD may bring about for Abraham what He has promised him.” Then the LORD said, “The outrage of Sodom and Gomorrah is so great, and their sin so grave! I will go down to see whether they have acted altogether according to the outcry that has reached Me; if not, I will take note.” The men went on from there to Sodom, while Abraham remained standing before the LORD. Abraham came forward and said, “Will You sweep away the innocent along with the guilty? What if there should be fifty innocent within the city; will You then wipe out the place and not forgive it for the sake of the innocent fifty who are in it? Far be it from You to do such a thing, to bring death upon the innocent as well as the guilty, so that innocent and guilty fare alike. Far be it from You! Shall not the Judge of all the earth deal justly?” And the LORD answered, “If I find within the city of Sodom fifty innocent ones, I will forgive the whole place for their sake.” Abraham spoke up, saying, “Here I venture to speak to my Lord, I who am but dust and ashes: What if the fifty innocent should lack five? Will You destroy the whole city for want of the five?” And He answered, “I will not destroy if I find forty-five there.” But he spoke to Him again, and said, “What if forty should be found there?” And He answered, “I will not do it, for the sake of the forty.” And he said, “Let not my Lord be angry if I go on: What if thirty should be found there?” And He answered, “I will not do it if I find thirty there.” And he said, “I venture again to speak to my Lord: What if twenty should be found there?” And He answered, “I will not destroy, for the sake of the twenty.” And he said, “Let not my Lord be angry if I speak but this last time: What if ten should be found there?” And He answered, “I will not destroy, for the sake of the ten.” When the LORD had finished speaking to Abraham, He departed; and Abraham returned to his place.

AND THE ETERNAL SAID. I.e., to the host of heaven standing by Him, or to the angel messengers.
It is possible that the word amar (He said) refers to thought, meaning that He thought He should not keep it hidden from Abraham on account of these reasons. Similarly: I ‘said,’ in the noontide of my days I shall go; And he ‘said’ to slay David. Likewise all expressions of speaking within the heart refer to thought.

כי ידעתיו FOR I KNOW HIM — this is an expression denoting "affection", as (Ruth 2:1) "kinsman (מודע) of her husband," and (Ruth 3:2) “And is not Boaz our kinsman (מודעתנו), and (Exodus 30:17) “I have distinguished (ידעתיך) thee by name”. Still the primary meaning of these terms connected with the root ידע is really that of knowing, for whoever holds a person in affection attaches him to himself, so that he knows him well and is familiar with him. And why do I hold him dear?

למען אשר יצוה BECAUSE HE WILL GIVE HIS CHILDREN CHARGE CONCERNING ME TO KEEP MY WAYS. If, however, you explain it as the Targum, “I know “of” him that he will command his sons etc.”, then the word למען does not fit into the sense.

הכצעקתה WHETHER ACCORDING TO THE CRY OF IT (literally, of her) — i.e. the cry of the country (מדינה which is feminine).

Rabbi Jehudah said: They made a proclamation in Sodom (saying): Everyone who strengthens the hand of the poor or the needy with a loaf of bread shall be burnt by fire. Peleṭith, daughter of Lot, was wedded to one of the magnates of Sodom. She saw a certain very poor man in the street of the city, and her soul was grieved on his account, as it is said, "Was not my soul grieved for the needy?" (Job 30:25). What did she do? Every day when she went out to draw water she put in her bucket all sorts of provisions from her home, and she fed that poor man. The men of Sodom said: How does this poor man live? When they ascertained the facts, they brought her forth to be burnt with fire. She said: Sovereign of all worlds ! Maintain my right and my cause (at the hands of) the men of Sodom. And her cry ascended before the Throne of Glory. In that hour the Holy One, blessed be He, said: "I will now descend, and I will see" (Gen. 18:21) whether the men of Sodom have done according to the cry of this young woman, I will turn her foundations upwards, and the surface thereof shall be turned downwards, as it is said, "I will now descend, and I will see whether they have done altogether according to her cry, which is come unto me" (ibid.). "According to their cry" is not written here (in the text), only "According to her cry."

ויגש אברהם AND ABRAHAM DREW NEAR — We find the verb ננש “to come near” used in the sense of coming near to wage war — (2 Samuel 10:13) “So Joab … drew near unto the battle”; — of coming near to persuade by entreaty — (44:18) “And Judah came near to him [and said, Oh, my lord]” — and of coming near to pray — (1 Kings 18:36) “And Elijah the prophet came near [and said, O Lord, God of Abraham etc.]” Abraham employed all these methods — to fight, by speaking stern words, and to persuade by entreaty, and to pray (Genesis Rabbah 49:8).

[WITHIN THE CITY.] That is, who publicly revere My name. Run ye to and fro through the streets of Jerusalem, And see now, and know, And seek in the broad places thereof, If ye can find a man, If there be any that doeth justly, and seeketh truth; And I will pardon her (Jer. 5:1) is similar.

Roam the streets of Jerusalem,
Search its squares,
Look about and take note:
You will not find a man,
There is none who acts justly,
Who seeks integrity—
That I should pardon her.

“and Avraham returned to his place ….” (Bereshit, 18:33)
After Avraham wholly delivered himself over to the cause of saving the people of Sodom, and after most of the prayer that he exerted in order to save them, God answered him that they were hateful of God, and it hurt Him that he would exert so much over those who hate God. Therefore, “Avraham returned to his place,” meaning to his initial place of strength, for then he truly knew that he only really loves the lovers of God, and certainly this contained a depth far greater than his apprehension.