Matt 7:15 - Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.

Matt 10:14 - And whosoever shall not receive you, nor hear your words, when ye depart out of that house or city, shake off the dust of your feet.

Matt 18:5-6 - And whoso shall receive one such little child in my name receiveth me.  But whoso shall offend one of these little ones which believe in me, it were better for him that a millstone were hanged about his neck, and that he were drowned in the depth of the sea.

Matt 18:10-17 - Take heed that ye despise not one of these little ones; for I say unto you, That in heaven their angels do always behold the face of my Father which is in heaven.  For the Son of man is come to save that which was lost.

How think ye? if a man have an hundred sheep, and one of them be gone astray, doth he not leave the ninety and nine, and goeth into the mountains, and seeketh that which is gone astray?  And if so be that he find it, verily I say unto you, he rejoiceth more of that sheep, than of the ninety and nine which went not astray.  Even so it is not the will of your Father which is in heaven, that one of these little ones should perish.

Luke 10:16 - He that heareth you heareth me; and he that despiseth you despiseth me; and he that despiseth me despiseth him that sent me.

Rom 16:17 - Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.

2 Cor 11:13-15 - For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ. And no marvel; for Satan himself is transformed into an angel of light.   Therefore it is no great thing if his ministers also be transformed as the ministers of righteousness; whose end shall be according to their works.

Gal 5:9-12 - A little leaven leaveneth the whole lump.  I have confidence in you through the Lord, that ye will be none otherwise minded: but he that troubleth you shall bear his judgment, whosoever he be.  And I, brethren, if I yet preach circumcision, why do I yet suffer persecution? then is the offence of the cross ceased.  I would they were even cut off which trouble you.

Eph 5:6-7 - Let no man deceive you with vain words: for because of these things cometh the wrath of God upon the children of disobedience. Be not ye therefore partakers with them.

1 Th 4:8-9 - He therefore that despiseth, despiseth not man, but God, who hath also given unto us his holy Spirit.  But as touching brotherly love ye need not that I write unto you: for ye yourselves are taught of God to love one another.

2 Th 3:5-6 - And the Lord direct your hearts into the love of God, and into the patient waiting for Christ.  Now we command you, brethren, in the name of our Lord Jesus Christ, that ye withdraw yourselves from every brother that walketh disorderly, and not after the tradition which he received of us.

2 Th 3:14-15 - And if any man obey not our word by this epistle, note that man, and have no company with him, that he may be ashamed.  Yet count him not as an enemy, but admonish him as a brother.

1 Tim 4:1-3 - Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils; Speaking lies in hypocrisy; having their conscience seared with a hot iron;  Forbidding to marry, and commanding to abstain from meats, which God hath created to be received with thanksgiving of them which believe and know the truth.

2 Tim 3:1-9 - This know also, that in the last days perilous times shall come.  For men shall be lovers of their own selves, covetous, boasters, proud, blasphemers, disobedient to parents, unthankful, unholy, without natural affection, trucebreakers, false accusers, incontinent, fierce, despisers of those that are good, traitors, heady, highminded, lovers of pleasures more than lovers of God; Having a form of godliness, but denying the power thereof: from such turn away.  For of this sort are they which creep into houses, and lead captive silly women laden with sins, led away with divers lusts, ever learning, and never able to come to the knowledge of the truth.

Now as Jannes and Jambres withstood Moses, so do these also resist the truth: men of corrupt minds, reprobate concerning the faith.  But they shall proceed no further: for their folly shall be manifest unto all men, as theirs also was.