Expressions of a person with hatred in his heart

Proverbs 26:23-26
New King James Version (NKJV)

23 Fervent lips with a wicked heart
Are like earthenware covered with silver dross.
24 He who hates, disguises it with his lips,
And lays up deceit within himself;
25 When he speaks kindly, do not believe him,
For there are seven abominations in his heart;
26 Though his hatred is covered by deceit,
His wickedness will be revealed before the assembly.