Ephesians 4:25

Lying. Gr. pseudos, “falsehood,” “untruth,” “lie.” Deceit brings its own disintegration of soul to the deceiver, often hurting him more than the deceived. How can those who are followers of the One who is the truth do anything else but hold to the utmost integrity in all things? In the life of the Christian there is no place for taking advantage of another in a business transaction, for the coloring of stories told, for the conveying of false impressions by innuendo, for the making of promises without the intention of keeping them, for the relaying of rumors and gossip.

Speak ... truth. A quotation from Zech. 8:16. Speaking the truth is a confirmed habit with the Christian.

Members one of another. Lying tends to break down the unity of brotherhood; deceit sets one member against another (cf. 1 Cor. 12:15). There can be no true union between man and man except on the basis of complete confidence (cf. Zech. 8:16).