I love the Puritans for reminding me...
"The true ambassador for Christ feels that he himself stands before God and has to deal with souls in Gods' stead as God's servant, and stands in a solemn place; a place in which unfaithfulness is inhumanity to man as well as treason to God."
- C.H. Spurgeon, considered to be the last of the Puritans
"I preach as never sure to preach again, and as a dying man to dying men."
- Richard Baxter, 17th century Puritan