And these were the sons of Levi by their names Hence it appears that the tribe of Levi, like the others, had made an astonishing progress from a small and contemptible beginning; for whereas he himself had only begotten three sons, Gershon and Merari only two each, and Kohath four; who would have expected such an increase, that twelve men in so short a time should have grown into so many thousands? But thus powerfully does God work under the semblance of weakness, that thus His glory may be the more conspicuous. But that He promoted the family of Kohath above the others, not only in the priesthood of Aaron, but also in their common ministry, proceeded from the same source of His gratuitous good pleasure, as the calling of Moses. He then, who had dignified also by so honorable an office, was, for his sake, gracious also to the family of Kohath. Neverthless, lost he should be suspected of ambition, or lest occasion of calumny should be given to the ungodly, God chose that the sons of Moses should remain in the ordinary station of the Levites.

And these were the sons of Levi, by their names,.... The immediate offspring and descendants of that patriarch:
Gershon, and Kohath, and Merari; these went down with him into Egypt, Genesis 46:11.