Adam Clarke on Genesis 45:5

Be not grieved, nor angry with yourselves - This discovers a truly noble mind: he not only forgives and forgets, but he wishes even those who had wronged him to forget the injury they had done, that they might not suffer distress on the account; and with deep piety he attributes the whole to the providence of God; for, says he, God did send me before you to preserve life. On every word here a strong emphasis may be laid. It is not you, but God; it is not you that sold me, but God who sent me; Egypt and Canaan must both have perished, had not a merciful provision been made; you were to come down hither, and God sent me before you; death must have been the consequence of this famine, had not God sent me here to preserve life.