Matthew 13:20

13:20 The seed sown on rocky ground is the person who hears the word and immediately receives it with joy.

Ezekiel 11:19

11:19 I will give them one heart and I will put a new spirit within them; I will remove the hearts of stone from their bodies and I will give them tender hearts,

Ezekiel 36:26

36:26 I will give you a new heart, and I will put a new spirit within you. I will remove the heart of stone from your body and give you a heart of flesh.

Amos 6:12

6:12 Can horses run on rocky cliffs?

Can one plow the sea with oxen?

Yet you have turned justice into a poisonous plant,

and the fruit of righteous actions into a bitter plant.

Zechariah 7:12

7:12 Indeed, they made their heart as hard as diamond, so that they could not obey the Torah and the other words the Lord who rules over all had sent by his Spirit through the former prophets. Therefore, the Lord who rules over all had poured out great wrath.