Exodus 1:8

8. Now there arose up a new king--About sixty years after the death of Joseph a revolution took place--by which the old dynasty was overthrown, and upper and lower Egypt were united into one kingdom. Assuming that the king formerly reigned in Thebes, it is probable that he would know nothing about the Hebrews; and that, as foreigners and shepherds, the new government would, from the first, regard them with dislike and scorn.

Robert Jamieson, A. R. Fausset & David Brown, 1871 · public domain

Verse 8 There arose up a new king - Who this was it is difficult to say. It was probably Ramesses Miamun, or his son Amenophis, who succeeded him in the government of Egypt about A. M. 2400, before Christ 1604. Which knew not Joseph - The verb ידע yada, which we translate to know, often signifies to acknowledge or approve. See Jdg 2:10; Psa 1:6; Psa 31:7; Hos 2:8; Amo 3:2. The Greek verbs ειδω and γινωσκω are used precisely in the same sense in the New Testament. See Mat 25:12, and 1Jn 3:1. We may therefore understand by the new king's not knowing Joseph, his disapproving of that system of government which Joseph had established, as well as his haughtily refusing to acknowledge the obligations under which the whole land of Egypt was laid to this eminent prime minister of one of his predecessors.

Adam Clarke, 1831 · public domain

The land of Egypt became to Israel a house of bondage. The place where we have been happy, may soon become the place of our affliction; and that may prove the greatest cross to us, of which we said, This same shall comfort us. Cease from man, and say not of any place on this side heaven, This is my rest. All that knew Joseph, loved him, and were kind to his brethren for his sake; but the best and most useful services a man does to others, are soon forgotten after his death. Our great care should be, to serve God, and to please him who is not unrighteous, whatever men are, to forget our work and labour of love. The offence of Israel is, that he prospers. There is no sight more hateful to a wicked man than the prosperity of the righteous. The Egyptians feared lest the children of Israel should join their enemies, and get them up out of the land. Wickedness is ever cowardly and unjust; it makes a man fear, where no fear is, and flee, when no one pursues him. And human wisdom often is foolishness, and very sinful. God's people had task-masters set over them, not only to burden them, but to afflict them with their burdens. They not only made them serve for Pharaoh's profit, but so that their lives became bitter. The Israelites wonderfully increased. Christianity spread most when it was persecuted: the blood of the martyrs was the seed of the church. They that take counsel against the Lord and his Israel, do but imagine a vain thing, and create greater vexation to themselves.

Matthew Henry, 1706 · public domain