Exodus 10:1 declares God hardened Pharaoh's heart; this verse shows that hardening fulfilled as Pharaoh refuses.

Exodus 10:20 similarly records God hardening Pharaoh's heart after the locust plague—repeating the same pattern here.

Exodus 4:21 predicts God will harden Pharaoh's heart; this verse is that promise in action during the plagues.

In Exodus 14:4, God again hardens Pharaoh's heart, now to pursue Israel, showing the hardening pattern continues toward the climax.

Exodus 14:8 repeats the hardening — Pharaoh pursues Israel because the Lord hardened his heart, directly continuing the narrative.

Exodus 7:13 records the first hardening of Pharaoh's heart, establishing the pattern that continues through the plagues.

Exodus 7:14 states Pharaoh's heart is hardened — God's declaration early in the narrative, linked directly to later hardening.

Exodus 11:10 summarizes the wonders and the Lord hardening Pharaoh's heart, reiterating the same divine action.

Isaiah 6:10 describes God making hearts dull — a similar divine hardening, though applied to Israel rather than Pharaoh.

Revelation 9:20 describes people who did not repent despite plagues — a parallel to Pharaoh's hardened refusal after each plague.

Revelation 16:11 continues the same refusal to repent despite pain — mirroring Pharaoh's persistent hardness.