Can there be such a thing? A Christian liar? In his first epistle the apostle John gives us a few examples of various types of liars. “Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the father and the son.” (IJn 2:22) The liar John describes here is obviously not a Christian but antichrist. But why is he a liar? Satan is described in John 8:44 as a liar and the father of all lies, so if you are anti — Christ, you have aligned yourself with Satan and are one with him. You neither have nor want a relationship with God.
“If we say that we have fellowship with him (God), and walk in darkness, we lie, and do not practice the truth”. (I Jn 1:6) This person claims fellowship with God and Christ, but his lifestyle betrays him. Worldly pursuits, maybe a token appearance in church, no prayer, unrestrained lusts and desires, all add up to darkness and not light. His claim of Godly fellowship is a lie, so, is he a Christian?
I John 4:20 reads, “If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen.” There are many different denominations and religions that claim to love God, but don’t let that love flow out to those around them. God expresses his love by giving and expects his followers to give also, especially love to one another. Professing love for God does not automatically make one a Christian, either.
“He that sayeth, I know him (Jesus), and keepeth not his commandments, is a liar, and the truth is not in him.”(I Jn 2:4) Another claim, specifically that of knowing Jesus and his will but not following what he asks you to do. The question here is do you really know Jesus or not? Are you choosing to disobey his words on purpose or can’t you help it? According to John, you have probably not been born of the spirit; you don’t obey because you really don’t believe. Possibly you’re a Christian who is of the opinion that following Christ’s commands isn’t necessary because you have been cleansed of all sin; past, present and future. I John 1:8 says, “If we say we have no sin, we deceive ourselves, and the truth is not in us.” Now, instead of lying to others, we are lying to ourselves and live in unreality.
Back to the original question, can there be Christian liars? John gives us one more guide in 2:21, “I have not written unto you because you know not the truth, but because you know it, and that no lie is of the truth.” To be a liar is to be at odds with the truth (Jesus). A real Christian is honest before God, toward others, and with himself. The Book of Revelation, also penned by John, contains this in 21:8, “…and all liars, shall have their part in the lake which burneth with fire and brimstone.” Christian liars? True honesty is a virtue cherished by God, in this life and in the next.