Parallel
Exodus 10:27
Rahlfs Septuagint (1935) · Berean Standard Bible
ἐσκλήρυνεν δὲ κύριος τὴν καρδίαν Φαραω καὶ οὐκ ἐβουλήθη ἐξαποστεῖλαι αὐτούς
But the LORD hardened Pharaoh’s heart, and he was unwilling to let them go.