Matthew 18:17
"but if he will not heed the church, let him be to you as a Gentile or a tax-gatherer.
2 Thessalonians 3:6
I summon you, in the name of the Lord Jesus Christ, to shun any brother who leads an idle and disorderly life, which is not according to the rule you received from me.
Matthew 5:46
"For if you love only those who love you, what reward have you?
Matthew 6:7
"While praying do not say the same words over and over again, as the Gentiles do, for they suppose that by their much speaking they will gain attention.
1 Corinthians 5:3-5
For I, although absent in body, yet present in spirit, have already passed sentence, by the authority of our Lord Jesus Christ, on him who has done this thing.
Matthew 11:19
and the Son of man came eating and drinking, and they say, 'Lo, a glutton and a wine-drinker, a friend of tax-gatherers and sinners!' Nevertheless, Wisdom is justified by her deeds."
Matthew 21:31-32
"Which of these two did the will of his father?" "The last," they replied. "I tell you truly," said Jesus, "that the tax-gatherers and harlots are going into the kingdom of heaven before you!
Luke 15:1
Now all the tax-gatherers and sinners continued to draw near him, and to listen to him.
Luke 18:11
"The Pharisee stood apart and thus began to pray by himself. "'O God, I thank thee that I am not like the rest of men, extortioners, rogues, adulterers, or even like this tax gatherer;
Luke 19:2-3
There was a man there, called Zaccheus, who was a chief of the tax-gatherers, and was wealthy.
Acts 6:1-3
Now in these days while the number of the disciples was multiplying, the Grecian Jews began to murmur against the Hebrews, because their widows were habitually overlooked in the distribution of alms.
Acts 15:6-7
The apostles and elders met to consider the matter;
Romans 16:17-18
I exhort you, brothers, to keep watch of those who are causing the divisions among you, and occasions of stumbling, contrary to the teaching which you have learned.
1 Corinthians 5:9-7
I told you in my letter not to associate with the immoral.
2 Corinthians 2:6-7
Sufficient for the offender is the punishment imposed by the majority;
2 Corinthians 6:14-17
Be not unequally yoked with unbelievers; for what fellowship has righteousness with lawlessness? what communion has light with darkness?
Ephesians 4:17-19
This then I tell you and implore you in the Master's name, to pass your lives no longer as the Gentiles do in the perverseness of their minds;
Ephesians 5:11-12
and have no fellowship with the unfruitful works of the darkness, but rather expose them.
2 Thessalonians 3:14-15
If any man does not give heed to what I have said in this letter, mark that man; do not associate with him, so as to make him feel ashamed;
1 Timothy 6:5
and wrangling between men whose minds are corrupt and destitute of the truth; who suppose that godliness is a source of gain.
2 John 1:10-11
If any one come to you and does not bring this teaching, do not receive him into your house, nor give him any greeting.
3 John 1:9-10
I have written somewhat to the church; but Diotrephes, who love to take the lead among them, does not receive me.