Psalms 51:10
NIV
10 Create in me a pure heart, God, and renew a steadfast spirit within me.
10 Create in me a pure heart, God, and renew a steadfast spirit within me.
31 To the Jews who had believed him, Jesus said, "If you hold to my teaching, you are really my disciples. 32 Then you will know the truth, and the truth will set you free."
23 Above all else, guard your heart, for everything you do flows from it.
8 Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable-if anything is excellent or praiseworthy-think about such things.