Charles Spurgeon Commentary Genesis 14:21

"And the king of Sodom said unto Abram, Give me the persons, and take the goods to thyself." — Genesis 14:21 (ASV)

And the king of Sodom said unto Abram, give me the persons, and take the goods to thyself.

It was according to the rule of war that if invaders were subsequently captured, then if the new captor returned the persons, he was fully entitled to take the goods to himself.

And the king of Sodom said unto Abram, Give me the persons, and take the goods to thyself.

They were all Abraham's by right as the spoils of war.