Now, when King Amraphel of Shinar, King Arioch of Ellasar, King Chedorlaomer of Elam, and King Tidal of Goiim

made war on King Bera of Sodom, King Birsha of Gomorrah, King Shinab of Admah, King Shemeber of Zeboiim, and the king of Bela, which is Zoar,

…They also took Lot, the son of Abram’s brother, and his possessions, and departed; for he had settled in Sodom.

A fugitive brought the news to Abram the Hebrew, who was dwelling at the terebinths of Mamre the Amorite, kinsman of Eshkol and Aner, these being Abram’s allies.

When Abram heard that his kinsman had been taken captive, he mustered his retainers, born into his household, numbering three hundred and eighteen, and went in pursuit as far as Dan.

At night, he and his servants deployed against them and defeated them; and he pursued them as far as Hobah, which is north of Damascus.

15 :Some time later, the word of the LORD came to Abram in a vision.
He said, “Fear not, Abram,
I am a shield to you;”

Rashi                                         

אחר הדברים האלה AFTER THESE THINGS means:
after this miracle has been wrought for him in that he slew the kings
and he was in great anxiety, saying,
“, אל תירא אברם אנכי מגן לך FEAR NOT ABRAM, I AM THY SHIELD
against punishment: for you shall not be punished
on account of all these people
whom you have slain. (Genesis Rabbah 44:5).