ESV: Then the Lord said to Moses, "Pharaoh 's heart is hardened; he refuses to let the people go.
NIV: Then the Lord said to Moses, "Pharaoh’s heart is unyielding; he refuses to let the people go.
NASB: Then the Lord said to Moses, 'Pharaoh’s heart is stubborn; he refuses to let the people go.
CSB: Then the Lord said to Moses, "Pharaoh’s heart is hard: He refuses to let the people go.
NLT: Then the Lord said to Moses, 'Pharaoh’s heart is stubborn, and he still refuses to let the people go.
KJV: And the Lord said unto Moses, Pharaoh's heart is hardened, he refuseth to let the people go.
NKJV: So the Lord said to Moses: “Pharaoh’s heart is hard; he refuses to let the people go.