Exodus 9:34-35

New American Standard Bible

³⁴ But when Pharaoh saw that the rain and the hail and the ^[a]thunder had stopped, he sinned again and ^[b]hardened his heart, he and his servants. ³⁵ So Pharaoh’s heart was ^[c]hardened, and he did not let the sons of Israel go, just as the ^(A)Lord had spoken through Moses.