1 John 2:19-21 New Life Version (NLV)
19 These left us. But they never belonged to us. If they had been a part of us, they would have stayed with us. Because they left, it is known they did not belong to us. 20 The Holy Spirit has been given to you and you all know the truth. 21 I have not written to you because you do not know the truth. I have written because you do know the truth and you know that no lie comes from the truth.