John 15:20-21---that on account of his name( Jesus) ( those think they are standing for it) will do things against the true followers--WHY? Because they do not know the one who sent him= Father( John 5:30) = YHWH(Jehovah)-- The one Jesus teaches is THE ONLY TRUE GOD( John 17:3) he as well teaches there one must know Father and know Jesus to get eternal life.
Do you know YHWH(Jehovah) --Jesus God and Father--John 20:17, Rev 3:12--- Few do. I guess that is why Few will find entrance into Gods kingdom.