While the intellect of Moses was developing, it is plain that his connection with his family was not entirely broken. Such a tie as often binds a foster-child to its nurse may have been permitted to associate him with his real parents. Some means were evidently found to instruct him in the history and messianic hopes of Israel, for he knew that their reproach was that of “the Christ,” greater riches than all the treasure of Egypt, and fraught with a reward for which he looked in faith (Heb. xi. 26). But what is meant by naming as part of his burden their “reproach,” as distinguished from their sufferings?

We shall understand, if we reflect, that his open rupture with Egypt was unlikely to be the work of a moment. Like all the best workers, he was led forward gradually, at first unconscious of his vocation. Many a protest he must have made against the cruel and unjust policy that steeped the land in innocent blood. Many a jealous councillor must have known how to weaken his dangerous influence by some cautious taunt, some insinuated “reproach” of his own Hebrew origin. The warnings put by Josephus into the lips of the priests in his childhood, were likely enough to have been spoken by some one before he was forty years old. At last, when driven to make his choice, he “refused to be called the son of Pharaoh’s daughter,” a phrase, especially in its reference to the rejected title as distinguished from “the pleasures of sin,” which seems to imply a more formal rupture than Exodus records.

The Expositor's Bible: The Book of Exodus — Part 32

We saw that the piety of his parents was not unhelped by their emotions: they hid him by faith when they saw that he was a goodly child. Such was also the faith by which Moses broke with rank and fortune. He went out unto his brethren, and looked on their burdens, and he saw an Egyptian smiting an Hebrew, one of his brethren. Twice the word of kinship is repeated; and Stephen tells us that Moses himself used it in rebuking the dissensions of his fellow-countrymen. Filled with yearning and pity for his trampled brethren, and with the shame of generous natures who are at ease while others suffer, he saw an Egyptian smiting an Hebrew. With that blended caution and vehemence which belong to his nation still, he looked and saw that there was no man, and slew the Egyptian. Like most acts of passion, this was at once an impulse of the moment, and an outcome of long gathering forces—just as the lightning flash, sudden though it seem, has been prepared by the accumulated electricity of weeks.

The Expositor's Bible: The Book of Exodus — Part 32