Verses with the word flattering in the Old Testament (7 verses):

Job 32:21
Let me not, I pray you, accept any man's person, neither let me give flattering titles unto man.

Job 32:22
For I know not to give flattering titles; in so doing my maker would soon take me away.

Psalms 12:2
They speak vanity every one with his neighbour: with flattering lips and with a double heart do they speak.

Psalms 12:3
The LORD shall cut off all flattering lips, and the tongue that speaketh proud things:

Proverbs 7:21
With her much fair speech she caused him to yield, with the flattering of her lips she forced him.

Proverbs 26:28
A lying tongue hateth those that are afflicted by it; and a flattering mouth worketh ruin.

Ezekiel 12:24
For there shall be no more any vain vision nor flattering divination within the house of Israel.