Acts 15:9

9and ahe made no distinction between us and them, bhaving cleansed their hearts cby faith.

2 Timothy 2:22

22So dflee eyouthful passions and pursue righteousness, faith, love, and peace, along with fthose who call on the Lord gfrom a pure heart.

Titus 1:15

15 hTo the pure, all things are pure, but to the defiled and iunbelieving, nothing is pure; but both jtheir minds and their consciences are defiled.
Copyright information for ESV