Truth must be the content of our speech, and love must be the motivation. (Kip Cone, pastor)
The Bible says that the tongue can be a dangerous thing and that no man can tame it. (See James 3.) Cone suggests two considerations that can help us use our tongues wisely and helpfully. Always tell the truth. That may sometimes require confrontation, but when the truth is told with genuine, caring love, it will encourage and build up.
Speak the truth in love. (Paraphrased excerpt of Ephesians 4:15)