Many of us use the phrase and generally we are encouraged to not lie, but is that what John was saying in his gospel?
Scripture References - John 8:31-36, 1 John 1:5-6, John 3:20-21, 1 John 2:3-4, John 18:37-38, John 17:17, Matthew 5:37, Ephesians 4:25, Revelation 21:8