John Calvin Commentary Psalms 105:14

"He suffered no man to do them wrong; Yea, he reproved kings for their sakes," — Psalms 105:14 (ASV)

He did not suffer men to hurt them. Abraham and his children did not have merely two or three enemies; they were harassed by whole nations. Therefore, as many rose up in troops against them one after another, the Psalmist says indefinitely that men were prevented from hurting them; for אדם, adam, is the word used here, which is most generally employed to signify man.

He next amplifies God's love towards His servants by setting Himself in opposition to kings for their sake. When God did not spare even the kings of Egypt and Gerar, it is evident how precious the welfare of Abraham and his offspring was in His sight.

We mentioned earlier that the holy patriarchs were held in no esteem by the world. God therefore displayed His goodness all the more remarkably by preferring them to kings. Now here we see that the Jews were humbled in the person of their forefathers, so that they might not imagine they found favor in God's sight by any merit of their own.