Mark 7:21-22
For it is from inside, from men's hearts, that designs of evil come; immorality, stealing, murder, adultery,
Matthew 10:33
but anyone who disowns me before men, I will disown before my Father in heaven.
Matthew 12:34-36
You brood of snakes! how can you, bad as you are, utter anything good? For the mouth says only what the heart is full of.
Acts 5:3-4
And Peter said, "Ananias, why has Satan taken such possession of your heart that you should lie to the holy Spirit, by appropriating part of the price of your land?
Romans 3:10-18
As the Scripture says, "There is not a single man who is upright,
Titus 1:16
They profess to know God, but they disown him by what they do; they are detestable, disobedient men, worthless for any good purpose.
Hebrews 3:12
See to it, my brothers, that no one of you has a wicked, unbelieving heart, that turns away from the ever-living God,
James 1:15
Then desire conceives and gives birth to sin, and when sin is mature, it brings forth death.
James 3:6
And the tongue is a fire, a world of wrong the tongue proves in our bodies, soiling the whole body and setting fire to the whole round of nature, and set on fire itself by hell.