Faithful Christians know that we must have Bible authority for all that we say and do in service to God. Paul said, “And whatever you do in word or deed, do all in the name of the Lord Jesus, giving thanks to God the Father through Him” (Col. 3:17 ). To do a thing “in the name of” someone is to do it by their power or authority (Acts 4:7). John wrote that we must abide within the doctrine of Christ (2 Jn. 9).
What God did authorize, as far as music is concerned, is singing. Consider the following passages:
“Let the word of Christ dwell in you richly in all wisdom, teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord” (Col. 3:16). “Speaking to one another in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord” (Eph. 5:19).
There are seven other passage in the NT that deal with music in worship. All refer to singing (Matt. 26:30 ff; Acts 16:25; Rom. 15:9; 1 Cor. 14:15; Heb. 13:15). There is no passage authorizing any instrument in worship to God in the New Testament. God did authorize singing. God did not authorize instrumental music. Therefore, it is unscriptural.
Since God specified singing, we are not at liberty to use any other kind of music. For example, Noah was told to build the ark of “gopher wood” (Gen. 6:14). Had God said, “wood” (leaving it in the generic), Noah would have been at liberty to use any kind of wood. Yet, because God specified “gopher” that eliminated the use of any other kind of wood. To build the ark of oak would not be authorized. To use gopher and oak would not be authorized.
Let’s consider again the matter of the Lord’s Supper. God specified that the unleavened bread and fruit of the vine should be used (Matt. 26:17-28). If we decide that we want grape jelly to go with our bread, we now have another element on the table and thus an addition to the word of God.
The same is true of music in worship. Had God told us to have music (leaving it in the generic), we could have chosen vocal or instrumental or a combination of both. However, since God specified, singing (Eph. 5:19), other kinds of music are thus eliminated. Instrumental music is therefore and addition to the word of God.