Proverbs 20:9

20:9 Who can say, “I have kept my heart clean;

I am pure from my sin”?

Proverbs 20:14

20:14 “It’s worthless! It’s worthless!” says the buyer,

but when he goes on his way, he boasts.

Proverbs 23:7

23:7 for he is like someone calculating the cost in his mind.

“Eat and drink,” he says to you,

but his heart is not with you;