[HarleyD]

I've never realized the Bible has two classification for sinning. I've always thought sin was a heart disease.

Mat 15:18-19 But what comes out of the mouth proceeds from the heart, and this defiles a person. For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander.

[reasonisfaith]

It’s all one classification: sinning. But the Lord speaks to us about where sin begins, in the heart. As your post shows and many other verses of God’s word.