“Thou shalt not bear false witness.”
The ninth commandment of the Lord God forbids us to speak falsehoods about our neighbor, and in general forbids all lies. For example: Perjury in court; False complaints; Gossip, slander, and defamation, which are diabolical acts since the word "devil" means libeler, slanderer, defamer. Repugnant to Christians are even those little white lies which are not intended to cause harm to a neighbor. Lying is not becoming to the calling of a Christian and not in harmony with love and consideration for one’s neighbor. The Apostle Paul says, Wherefore putting away lying, speak every man truth with his neighbor: for we are members one of another (Eph. 4:25).
It is never appropriate to blame or judge others, if we have not been specifically required to do so because of the responsibility of our position or duty. Judge not that ye be not judged, says the Savior. It is necessary to keep in mind that judging, reproach, and mockery will not reform a neighbor; only love, tolerance, and good harmony will. It is also necessary to always bear in mind that each of us has many weaknesses and faults. One must always keep a restraint on his tongue. One must speak only the truth and curb oneself from disparaging remarks and idle chatter. Speech is a gift of God. Jesus Christ said, But I say unto you, that every idle word that men shall speak, they shall give account thereof in the day of judgment. For by thy words thou shalt be justified, and by thy words thou shalt be condemned (Matt. 12:36-37).