One day, after Moses had grown up, he went out to his own people and observed their hard labor. He saw an Egyptian beating a Hebrew, one of his own people.
11. And it came to pass in those days, when Moses was grown. Now did that faith which the Apostle celebrates begin to shew itself, when Moses, despising the pleasures and riches of the Court, chose rather to suffer the reproach of Christ, than to be accounted happy apart from companionship with the chosen people.
Moses had now passed the first forty years of his life in the court of Pharaoh, preparing himself for business; and now it was time for him to enter upon action, and, I. He boldly owns and espouses the cause of God's people: When Moses was grown he went out unto his brethren, and looked on their burdens, Exo 2:11.
Commenting on Exodus 2:11-15
And it came to pass in those days, when Moses was grown,.... To man's estate; some of the Jewish writers say he was eighteen, others twenty years of age (e), but Stephen, who is most to be credited, says he was full forty years of age, Act 7:23, that he went out unto his brethren the Hebrews: whom he knew to be his brethren, either...