John the Evangelist wrote:
He that saith, I know him, and keepeth not his commandments, is a
liar, and the truth is not in him.
(1 John 2:4)
John the Evangelist wrote:
He that saith, I know him, and keepeth not his commandments, is a
liar, and the truth is not in him.
(1 John 2:6)
John of Patmos wrote:
I know thy works, and thy labour, and thy patience, and how thou
canst not bear them which are evil: and thou hast tried them which
say they are apostles, and are not, and hast found them liars:
(Revelations 2:2)
John of Patmos wrote:
I know thy works, and tribulation, and poverty, (but thou art
rich) and I know the blasphemy of them which say they are Jews,
and are not, but are the synagogue of Satan.
(Revelations 2:9)
But I have a few things against thee, because thou hast there them
that hold the doctrine of Balaam, who taught Balac to cast a
stumbling block before the children of Israel, to eat things
sacrificed unto idols, and to commit fornication.
So hast thou also them that hold the doctrine of the Nicolaitanes,
which thing I hate.
(Revelations 2:14-15)
The above gospel writers warn against a dangerous heretic, a false
Jew, a false Apostle and a false Gospel.