With all due respect DHK I think you fail to realize this is not limited to just kicking people out of the church. When verse 20 says "2 or 3 gathered in my name" He is saying I will be in the midst of them as they seek his will "also see 1 John 5:14". Jesus often reiterated principals from the OT. Example of Shadrach, Meshach, and Abed-nego came together in agreement that they would not worship. And when they were thrown into the fire who was with them? :type: Wasn't church discipline but they were in Gods will and the Lord showed up. Another NT teaching that echos from the OT would be Jesus said "low I am with you always even to the end of the age", just like the passagaes in the OT? Hummmm Hebrews 13:5 I will never leave you nor forsake you?
And the context is:
Matthew 18:17 And if he shall neglect to hear them, tell
it unto the church: but if he neglect to hear the church, let him be unto thee as an heathen man and a publican.
18 Verily I say unto you, Whatsoever ye shall bind on earth shall be bound in heaven: and whatsoever ye shall loose on earth shall be loosed in heaven.
19 Again I say unto you, That if two of you shall agree on earth as touching any thing that they shall ask, it shall be done for them of my Father which is in heaven.
20 For
where two or three are gathered together in my name, there am I in the midst of them.
21 Then came Peter to him, and said, Lord, how oft shall my brother sin against me, and I forgive him? till seven times?
The context is in church discipline.
There are other verses that teach that Christ is with us always. But the context of this Scripture is church discipline. It is not the definition of a church and shouldn't be used as one.
Certainly applications can be made, as the Lord is with us, but the verse in itself is not a definition of a church. Anyone who exegetes this passage properly can see that.
The local church is God's ordained institution of this dispensation. I promised God and my family many years ago that we would never live in a town or place where there was no good local church to attend. And if by chance that ever happened, I would start one.
God's blessing is on the local church today, not coffee house meetings, or other social gatherings that excuse themselves from the authority of the local church on the basis of Mat.18:20.