Hebrews 3:10

3:10 “Therefore, I became provoked at that generation and said, ‘Their hearts are always wandering and they have not known my ways.’

Hebrews 3:15

3:15 As it says, “Oh, that today you would listen as he speaks! Do not harden your hearts as in the rebellion.”

Hebrews 10:11

10:11 And every priest stands day after day serving and offering the same sacrifices again and again – sacrifices that can never take away sins.

Hebrews 10:22

10:22 let us draw near with a sincere heart in the assurance that faith brings, because we have had our hearts sprinkled clean from an evil conscience and our bodies washed in pure water.