It is not only prayer that gives God glory but work. Smitting on an anvil, sawing a beam, whitewashing a wall, driving horses, sweeping, scouring, everything gives God some glory if being in his grace you do it as your duty. To go to communion worthily gives God great glory, but a man with a dungfork in his hand, a woman with a sloppail, give him glory too. He is so great that all things give him glory if you mean they should.