Exodus 9:35
And Pharaoh's heart will be bound fast, and he sent not forth the sons of Israel; as Jehovah spake by the hand of Moses.
Exodus 4:21
And Jehovah will say to Moses, In thy going to turn back to Egypt, see all the wonders which I put in thy hand: do them before Pharaoh; and I will bind fast his heart and he shall not send forth the people.
Treasury of Scripture Knowledge
Summary
And the heart of Pharaoh was hardened, neither would he let the children of Israel go; as the LORD had spoken by Moses.
General references
Bible References
General references
Jeremiah 34:11
And they will turn back after this, and they will cause their servants and their maids to turn back whom they sent away free, and they subdued them for servants and for maids.