Proverbs 26:23 in the World English Bible
Like silver dross on an earthen vessel are the lips of a fervent one with an evil heart.
Context
22 The words of a talebearer are as wounds, and they go down into the innermost parts of the belly.
23 Burning lips and a wicked heart are like a potsherd covered with silver dross.
24 He that hateth dissembleth with his lips, and layeth up deceit within him;