John tells his readers in his first epistle, “Children, do not love verbally nor by tongue, but in work and truth” (1 Jn 3:18). Truth here is not only not a quality of words and speech, but is being opposed to words and speech. To love in truth is not to say loving things; true love is doing. Positively, truth is action. Truth is not something said, but something done.
Obviously, this is not the only thing the Bible says about truth.