We do exhort men to worship God neither in a frigid nor a careless manner; and while we point out the mode, we neither lose sight of the end, nor omit any thing which bears upon the point. We proclaim the glory of God in terms far loftier than it was wont to be proclaimed before, and we earnestly labor to make the perfections in which His glory shines better and better known. His benefits towards ourselves we extol as eloquently as we can, while we call upon others to reverence His Majesty, render due homage to His greatness, feel due gratitude for His mercies, and unite in showing forth His praise. In this way there is infused into their hearts that solid confidence which afterwards gives birth to prayer.
–John Calvin, “On the Necessity of Reforming the Church” (http://www.lgmarshall.org/Calvin/calvin_necessityreform.html)