heart is as fat

Psalm 17:10
They have closed their callous hearts; their mouths speak with arrogance.

Psalm 73:7
From their callous hearts proceeds iniquity; the imaginations of their hearts run wild.

Isaiah 6:10
Make the hearts of this people calloused; deafen their ears and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.

Acts 28:27
For this people's heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.'

but I

Psalm 119:16, 35
I will delight in Your statutes; I will not forget Your word. . . .

Psalm 40:8
I delight to do Your will, O my God; Your law is within my heart."

Romans 7:22
For in my inner being I delight in God's Law.