John Chrysostom

Next again an example appropriate to them, or rather greater than that. For, saith he, "by faith Moses when he was come to years, refused to be called the son of Pharaoh's daughter, choosing rather to suffer affliction with the people of God than to enjoy the pleasures of sin for a season; esteeming the reproach of Christ greater riches than the treasures of Egypt; for he had respect unto the recompense of the reward." As though he had said to them, "No one of you has left a palace, yea a splendid palace, nor such treasures; nor, …

Homily on Hebrews 26 ↗

Theophylact of Ohrid

He arrived at the example most dear to them — that of Moses, which is why he dwells on it at greater length. The structure of his thought is as follows: "By faith Moses refused to be called the son of Pharaoh's daughter." When? "When he was come to years," that is, having already reached manhood. Evidently because he hoped to receive something greater in return. The word "refused" shows a strong hatred and inner aversion to the decrees of the king.

Commentary on Hebrews ↗

Oecumenius

"By faith, Moses, when he had grown up, refused." For he did this, hoping to receive greater goods than those present. And the phrase "refused" indicates that he was determined to alienate himself.

The Pseudo-Oecumenian Catena on Hebrews ↗

Thomas Aquinas

614. – Then (v. 24) he shows what Moses did by faith; first what he did; secondly, that what he did pertained to faith (v. 26b). 615. – Here he touches on the history recorded in Exodus (2), where it is stated that Pharaoh's daughter had him nursed by his mother and adopted him as a son. But he denied himself to be her son, not in word, but in deed; because against Pharaoh's will he killed an Egyptian who had harmed a Hebrew. Therefore, he says, by faith, when he was grown up, he denied himself to be the son of Pharaoh's daughter. …

Commentary on Hebrews ↗