Small Church VS Mega-Church

Doesn’t Matthew 18:20 teach that God wants small churches, not mega-churches?

Here is the text you mentioned: “For where two or three are gathered together in My name, I am there in the midst of them.”

As unbeautiful as it might sound, the context of this verse is about the process of discipline within the church, not the size of a church. Let’s back up a little and read verses 16-20: 16 But if he will not hear, take with you one or two more, that “by the mouth of two or three witnesses every word may be established.’ 17 And if he refuses to hear them, tell it to the church. But if he refuses even to hear the church, let him be to you like a heathen and a tax collector. 18 “Assuredly, I say to you, whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven. 19 “Again I say to you that if two of you agree on earth concerning anything that they ask, it will be done for them by My Father in heaven. 20 For where two or three are gathered together in My name, I am there in the midst of them.”

The ‘two or three’ mentioned in vs. 20 are the same ‘two or three’ mentioned in vs. 16. If someone who has sinned against you does not listen to you when you meet up with them to try to sort the issue out, then take one or two others with you, that every charge may be established by the evidence of two or three witnesses.

In Matthew 18 Jesus simply gave his approval to the process, (‘I am there in the midst of them’), if it’s done in the right way.