Mark 16:14 English Standard Version (ESV)

The Great Commission

¹⁴ Afterward he appeared to the eleven themselves as they were reclining at table, and he rebuked them for their unbelief and hardness of heart, because they had not believed those who saw him after he had risen.

Mark 3:5 English Standard Version (ESV)

⁵ And he looked around at them with anger, grieved at their hardness of heart, and said to the man, “Stretch out your hand.” He stretched it out, and his hand was restored.

Mark 6:52 English Standard Version (ESV)

⁵² for they did not understand about the loaves, but their hearts were hardened.

Hebrews 3:8 English Standard Version (ESV)