Psalms 95:8

8 ado not harden your hearts, as at bMeribah,
as on the day at cMassah in the wilderness,

Zechariah 7:12

12 dThey made their hearts diamond-hard elest they should hear the law and the words that the Lord of hosts had sent fby his Spirit through gthe former prophets. hTherefore great anger came from the Lord of hosts.

Malachi 2:13-14

13And this second thing you do. iYou cover the Lord’s altar with tears, with weeping and groaning because he no longer regards the offering or accepts it with favor from your hand. 14 jBut you say, “Why does he not?” Because the Lord kwas witness between you and the wife of your youth, lto whom myou have been faithless, though she is your companion and your wife by covenant.

Mark 10:5

5And Jesus said to them, “Because of your nhardness of heart he wrote you this commandment.
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