Matthew 18:20 For where two or three are gathered together in my name, there am I in the midst of them.
What a tremendous promise we have in this verse. He will meet with us. It is not about having a great number but rather a great promise. He is with us. He meets with us. They could know that He would be there for them.
The next time you are in a worship service you can count on the fact that He is there, literally. That is what He said. We gather in His name. He comes. He hears us. He is blessed. We are blessed.