1./ Falsifiers falsely professing to be Christians ?

FIRST:/   Are there really falsifiers falsely professing to be Christians ?  

ONE:/   The doctrine of  falsifiers falsely professing to be Christians as it's roots firmly with the following teachings of Jesus and the Word of God ~
fakers~ 1 Jn 2:19;  Heb. 10:38-39; John 6:26; + 6:66; DO NOT ENDURE ! cp. however, [ Hebrews 6:4-8;  is it possible that such as these may fall also ? cf. and consider ~ Matthew 24:24; Mark 13:22;] not-with-standing, that there are fakers is obvious and evident (as taught within the Word of God) !
 

TWO:/    they would

exclude you
Galatians 4:17;  They zealously affect you, but not well; yea, they would exclude you, that ye might affect them.

hinder you
Luke 11:52; Woe unto you, lawyers! for ye have taken away the key of knowledge: ye entered not in yourselves, and them that were entering in ye hindered.

bow you down that they may go over
Isaiah 51:23;But I will put it into the hand of them that afflict thee; which have said to thy soul, Bow down, that we may go over: and thou hast laid thy body as the ground, and as the street, to them that went over.

affect you that they may glory in your subjections
Galatians 6:13;  For neither they themselves who are circumcised keep the law; but desire to have you circumcised, that they may glory in your flesh.

promise you liberty while they are
2 Peter 2:19;  While they promise them liberty, they themselves are the servants of corruption: for of whom a man is overcome, of the same is he brought in bondage.

and, many such things as these like things do they.

they are not to be believed

cease ye from man

Isaiah 2:22; Cease ye from man, whose breath is in his nostrils: for wherein is he to be accounted of ?

John 5:44;  How can ye believe, which receive honour one of another, and seek not the honour that cometh from God only?

Jude 1:16; These are murmurers, complainers, walking after their own lusts; and their mouth speaketh great swelling words, having men's persons in admiration because of advantage.

TWO:/    These, speak evil of you.........

1 Peter 3:16; Having a good conscience; that, whereas they speak evil of you, as of evildoers, they may be ashamed that falsely accuse your good conversation in Christ.

1 Peter 4:4; Wherein they think it strange that ye run not with them to the same excess of riot, speaking evil of you:

2 Peter 2:12; But these, as natural brute beasts, made to be taken and destroyed, speak evil of the things that they understand not; and shall utterly perish in their own corruption;

Jude 1:10; But these speak evil of those things which they know not: but what they know naturally, as brute beasts, in those things they corrupt themselves.

Titus 1:12; One of themselves, even a prophet of their own, said, the Cretians are alway liars, evil beasts, slow bellies.