Matthew 18:17
And if he refuses to listen to them [i.e., the witnesses], explain the [whole] matter to the church [i.e., probably a specially called meeting of mature Christians to resolve the matter]. And if he refuses to listen to the church also, [i.e., to acknowledge his sin and repent of it], consider him like an [unconverted] Gentile or tax collector [i.e., do not have fellowship with him].
2 Thessalonians 3:6
Now we command you, brothers, in the name [i.e., by the authority] of our Lord Jesus Christ, that you people stay away from every brother [or sister] who lives an idle life [See note on I Thess. 5:14], and not according to the [inspired] tradition which you received from us.
Matthew 5:46
For if you love [only] those who love you, what reward will you get for that? Do not even the publicans [Note: These were people with a bad reputation for their dishonest tax collecting activities] do that much?
Matthew 6:7
And when you pray, do not use worthless repetitions like the [unconverted] Gentiles, for they think their lengthy, repetitious wording [in prayer] is more likely to be heard [by God].
1 Corinthians 5:3-5
For although physically absent [from you], I am truly present with you in spirit and have already judged the person who did this [terrible] thing, just as if I were there [in person].
Matthew 11:19
[Then] the Son of man came eating and drinking [at festive occasions] and they said, 'Look, He is a glutton and a drunkard and a friend of tax collectors and worldly people.' It proves that [God's] wise counsel is right by the way things turn out."
Matthew 21:31-32
Which of these two sons did what his father wanted?" They answered, "The first one." Jesus said to them, "Truly I tell you, tax collectors and prostitutes [will] enter the kingdom of God ahead of you.
Luke 15:1
Now the tax collectors and worldly people were all gathering around Jesus to listen to Him.
Luke 18:11
The Pharisee stood up [conspicuously] and prayed about himself this way [i.e., bragging to God about how good he was], 'God, I thank you that I am not like other people: swindlers, unjust, sexually unfaithful to their mates, or even like that tax collector [over there].
Luke 19:2-3
Just then, there appeared a man named Zacchaeus, who was a wealthy, chief tax collector.
Acts 6:1-3
Now during the days when the disciples were multiplying in number [in Jerusalem. See verse 7], some Greek-[speaking] Jews began to complain to the Hebrews that their widows were being neglected in the daily distribution [of food].
Acts 15:6-7
So, the apostles and elders [of the Jerusalem church] met together to discuss this problem.
Romans 16:17-18
Now I urge you, brothers, watch out for those who are causing divisions and occasions for falling [away from God over matters] contrary to the teaching you have learned, and withdraw from them [i.e., stop listening to their false teaching].
1 Corinthians 5:9-7
I wrote you in my letter not to associate with sexually immoral people.
2 Corinthians 2:6-7
The punishment inflicted [on him] by the majority of you was sufficient. [Note: If this is a reference to the incestuous man of I Cor. 5:4ff, then the punishment was removing him from their fellowship].
2 Corinthians 6:14-17
Do not team up with unbelievers [i.e., in close relationships, such as marriage, etc.]. For what do righteousness and wickedness have in common? Or, what fellowship can light have with darkness?
Ephesians 4:17-19
So, I tell you this, and insist [on it] by [the authority of] the Lord: Do not continue to live with worthless thoughts as [unconverted] Gentiles do.
Ephesians 5:11-12
Do not have fellowship with [people who practice] worthless deeds of darkness [i.e., sinful living], but expose them instead.
2 Thessalonians 3:14-15
And if any person does not obey our instructions, [given] in this letter, you should take note of him so that you do not associate with him, in hope that he will become ashamed [of his conduct].
1 Timothy 6:5
[and] continual wranglings between people with corrupt minds, who are deprived of the truth. They think that [professing] godliness is a way to obtain [financial] gain.
2 John 1:10-11
If anyone comes to you [i.e., to your meetings] who does not bring this teaching [about Christ], you should not welcome him into your home or give him [any] greetings [i.e., suggesting approval or endorsement].
3 John 1:9-10
I wrote a letter to the church [there], but Diotrephes, who loves to be first [in importance] among the members [of the body there], does not receive us [i.e., he did not listen to or acknowledge the authority of us apostles].