This past Sunday I visited a friend's church. A group there were getting ready to pass out tracts on the streets of their city and invite people to a Christian film later the same day. 

I will probably never do street evangelism. But I am glad someone does. I know people who have become believers through encounters like this.

This particular set of brothers and sisters are probably never going to join an open-air activity focusing on racial justice (it's not perceived as an issue in their country). I'm not likely to organize that, either, but I'm glad somebody does. 

I'm sure you can think of other examples. Churches who organize hour-long praise and worship sessions. Churches who practice and teach time-tested spiritual disciplines. There are many gifts in the body of Christ. Individual gifts and group gifts. Thank God for giving us each other!