I was thinking about a phrase my pastor tossed out about the nature of prayer, and it's been sticking with me ever since.
Matthew 18:20, where Jesus says "where two or three are gathered in My name, I am with them," was the starting point - it's often used to define a church, or congregation, focusing on the gathering of believers.
But that always sounds odd to me.
You know how people say "two is company's, three's a crowd," well...
Pirkei Avot, a collection of ethical maxims from the rabbis, in chapter 3 v. 7 (which I had to look up), says otherwise, and - more importantly - backs it up with verses that apply for Christians, too: