A church that prays, OBEYS
A church that prays, is a church full of members that obey!
They obey by studying and learning correct Bible doctrine.
They obey the right doctrine they've learned by actually practicing what they say they believe in real life.
Finally, they obey the command for all believers to actively participate in the great commission.
Mark 16:15 Go ye into all the world, and preach the gospel to every creature.