'Liar' in the Bible

If it be not so now, who will make me a liar, and make my speech nothing worth?

The evil-doer giveth heed to iniquitous lips; the liar giveth ear to a mischievous tongue.

The charm of a man is his kindness; and a poor man is better than a liar.

Add thou not unto his words, lest he reprove thee, and thou be found a liar.