In those days. — Notes of time are used with considerable latitude by the sacred writers. (Comp. Genesis 38; 2 Kings 20:1.) According to the tradition followed by St. Stephen (Acts 7:23), Moses was “full forty years old “when he took the step here indicated. We might have expected him to have come forward sooner; but there may have been difficulties in his so doing. It is remarkable that he does not tell us anything of his life during youth or early manhood. Later tradition was full of details (Stanley, Lectures on the Jewish Church, pp. 107-9), which, however, are worthless.
He went out unto his brethren. — It is probable that Pharaoh’s daughter had never concealed from Moses that he was not her own child, but one of the oppressed race. She may even have allowed him to hold communication with his family. It is not, however, a mere visit that is here spoken of, but a complete withdrawal from the palace, and renunciation of his position at the court. “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” (Hebrews 11:24-25). It is the first sign of that strong sympathy and tender affection for his people which characterises him throughout the narrative, and culminates in the pathetic cry, “Forgive them; and if not, blot me out of thy book” (Exodus 32:32).
Looked on their burthens — i.e., examined into their condition, watched their treatment, made himself acquainted with it by personal inspection.
He spied an Egyptian smiting a Hebrew. — Probably a taskmaster chastising one of the labourers, whom he accused of idling. St. Stephen regards the act as one of “oppression” and “wrong-doing” (Acts 7:24). Moses must certainly have viewed it in this light, or he would not have been so moved to indignation as to kill the Egyptian. Though not a cruel nation, the Egyptians, no doubt, like other slave-drivers, occasionally abused their power, and treated the unfortunate labourers with cruelty.