Charles Spurgeon Commentary Hebrews 11:24-26

"By faith Moses, when he was grown up, refused to be called the son of Pharaoh`s daughter; choosing rather to share ill treatment with the people of God, than to enjoy the pleasures of sin for a season; accounting the reproach of Christ greater riches than the treasures of Egypt: for he looked unto the recompense of reward." — Hebrews 11:24-26 (ASV)

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 in Egypt: for he had respect unto the recompense of the reward.

Nothing but faith could have brought him to that decision.