May The Lamb That Was Slain Receive The Reward Of His Suffering

"The Moravians were not the only missionaries inspired by Revelation 5, but probably the Moravians gave expression to the beauty of the missionary implications of this text better than anybody. And in the middle of the eighteenth century, they would get on their ships in North Germany to disappear forever out of their families' lives to peoples they had no idea whether they'd eat them or not, and as the ships pulled out from shore, they would lift their hands and say, 'May the Lamb that was slain receive the reward of his suffering.' That comes straight out of Revelation 5:9. 'May the Lamb that was slain, in my ministry, receive the reward of his suffering. He was slain for them, and I'm going to go be the means by which he gets his reward for his suffering.' I cannot imagine a vision of life more precious than that. I mean, if you could wake up every morning and preach to yourself, 'I am the instrument in the hands of the grace of God by which the Lamb slain will receive the reward of his suffering.'" (John Piper, at 27:20 in the video here)