For David, after he had served his own generation by the will of God, fell on sleep, and was laid unto his fathers… – Acts 13:36

Did David serve his generation by the will of God; or did he fall asleep by the will of God? …Over both his life and his death may be written the words, “By the will of God.” Oh, that we may all so live, that even in death we may serve our generation; may it be true of us that “whether we live, we live unto the Lord; and whether we die, we die unto the Lord; whether we live therefore or die, we are the Lord’s”! Thus, “the will of God” shall be done both in our service and in our sleep. David is an example of what will befall those who know Christ, at the end of their service. He did not go to sleep till his work was done. “David, after he had served his own generation by the will of God, fell on sleep.” Do not want to die till you have done your work. When brethren say, “Oh, I wish I could go to heaven! Oh, when shall I get home?” they remind me of a man who, when he begins work on Monday, says, “I wish it was Saturday night.” We do not want servants like that, nor does God either. Be willing to live for two hundred and fifty years, if God wills it. Be willing to live until strength fails you, if God wills it; you can still bear your dying testimony to the Lord’s faithful and unchanging love. Do not be in a hurry to go home to heaven. Do not want to go to sleep till you also have served your generation well. When David had served his generation, he fell on sleep. We are told that, in the early days of Christianity, when believers were falling asleep in Jesus, their friends did not bid them “good-bye,” but “good night.” So, we say, in the words of that beautiful hymn-

“Sleep on beloved, sleep, and take thy rest;
Lay down thy head upon thy Saviour’s breast:
We love thee well; but Jesus loves thee best-
Good-night! Good-night! Good-night!

~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/2243.cfm