Exo 4:21, 7:4, 13-14, Pro 29:1, Zec 7:11-12, Heb 3:8, 15, Rev 16:9 | ESV | STEP | And the Lord said to Moses , When you go back to Egypt , see that you do before Pharaoh all the miracles that I have put in your power . But I will harden his heart , so that he will not let the people go .

21 And the Lord said to Moses, “When you go back to Egypt, see that you do before Pharaoh all the ^amiracles that I have put in your power. But ^bI will harden his heart, so that he will not let the people go.

Exodus 7:4

4 Pharaoh will not listen to you. Then I will lay my hand on Egypt and bring my hosts, my people the children of Israel, out of the land of Egypt by great acts of judgment.

Exodus 7:13-14

13 Still ^cPharaoh’s heart was hardened, and he would not listen to them, ^das the Lord had said.

The First Plague: Water Turned to Blood

14 Then the Lord said to Moses, “Pharaoh’s heart is hardened; he refuses to let the people go.

Proverbs 29:1

1 ^eHe who is often reproved, yet stiffens his neck,
will suddenly be ^fbroken ^gbeyond healing.

Zechariah 7:11-12

11 But ^hthey refused to pay attention ⁱand turned a stubborn shoulder and stopped their ears that they might not hear. ^{▼▼Hebrew and made their ears too heavy to hear} 12 ^kThey made their hearts diamond-hard ^llest they should hear the law and the words that the Lord of hosts had sent ^mby his Spirit through ⁿthe former prophets. ^oTherefore great anger came from the Lord of hosts.

Hebrews 3:8

8 do not harden your hearts as in the rebellion,
on the day of testing in the wilderness,

Hebrews 3:15

15 As it is said,

^p“Today, if you hear his voice,
do not harden your hearts as in the rebellion.”

Revelation of John 16:9

9 They were scorched by the fierce heat, and ^qthey cursed ^{▼▼Greek blasphemed; also verses 11, 21} the name of God who had power over these plagues. ^sThey did not repent ^tand give him glory.