I presently attend a church where singing is accompanied by a band composed of guitars, keyboards, drums, and bass. In reading a book by Edward C. Wharton, he makes a good case that instrumental music is not authorized by Jesus during worship services in the new covenant. In the old Mosaic covenant, instrumental music was not only authorized, but commanded. It was overseen by King David himself (1 Chron. 25:1-7; 2 Chron. 29:25-30). After the Babylonian captivity, temple services included singers and Levites to play the instruments, (Neh. 12:1-47). However, when the new covenant church was being instituted in the 1st century, there is no evidence of instrumental music ever being used or authorized. There are many scriptures dealing with the types of songs, hymns, ect. to be sung at worship services including Ephesians 5:19 - 20; "Speak to one another with psalms, hymns and spiritual songs. Sing and make music in your heart to the Lord, always giving thanks to God the Father for everything, in the name of our Lord Jesus Christ." This verse says to make "music in your hearts". Colossians 3:17 says that we are to do all things in the name of the Lord, i.e. by his authority. If Jesus did not authorize musical instruments at worship services, than how can we use them? Just as Cain's sacrifice was unacceptable to God, do we run the risk of our worship services being unacceptable? Musical instruments were not used in worship services in the first thousand years of the Church. A cappela in Italian actually means "as in chapel". Just as baptism which was by full immersion during the first thousand years became corrupted, have our worship services become corrupted as well?