The text is not merely saying that the king had not met Joseph personally, although that is probably true. Furthermore, it is unlikely that this Pharaoh had never heard of Joseph given Joseph’s important contributions to Egypt. Rather, the word to know
has the sense here of paying attention to
or acknowledging
someone or something (see Exodus 2:25; Exodus 3:7; Exodus 1:2 – 40:38; Exodus 7:17; Exodus 8:22; Exodus 9:29; 1 Samuel 2:12).1 The point is that this new king does not acknowledge Joseph’s influence and will therefore no longer grant Israel a privileged status. After all, it was only because Joseph was a father to Pharaoh
that the Israelites were allowed to sojourn in Goshen in the first place (Genesis 45:8; Genesis 47:5–6, Genesis 47:11–12).
8 Now there arose a new king over Egypt, who did not know Joseph.