Every order came from King David. And David was getting his instructions from the Lord. There were never two ways given, never a choice. And so it is for the believers today. God never gives us a choice of anything in our life. He gives one way we either obey or disobey. If we obey we are happy (John 15:8-11) and we learn more.
We will list ten scriptures which show that this is God’s will (John 7:17; Luke 8:18; 1 Cor. 1:10; Phil. 2:2; Acts 20-29-32; Gal. 3:28; 2 Cor. 3:5; 2 Cor. 10:5; Prov. 28:5). See how many more you can find.
Let us relate all this to our chapter. David, of course, is a picture of Christ. Of Him it is written in Hebrews 5:8, “though He were a Son, yet learned He obedience by the things which He suffered.” David’s life of warfare is a picture of how Christ will act when He comes in power to reign over the earth. David was the supreme ruler. Christ shall be too. David earned this right. So did Christ. David made many changes from that given by Moses (2 Chron. 23:24). He changed the age of service of the priests to 20 years from 30. He introduced praising the Lord (2 Chron. 23:30).
V.7-18 Twenty-four groups (or shifts) took turns at this new work. Remember that all this is a picture of the coming reign of Christ.