In fact, to suggest that the Word of God alone is insufficient is to espouse the very opinion that lies at the heart of virtually every cult that pretends to be Christian. The one thing nearly all of them have in common is the belief that people need the Bible plus something else--the writings of some "enlightened" prophet or seer, the edicts of church tradition, or the conclusions of science and secular philosophy. So, to deny the sufficiency of Scripture is to espouse an age-old heresy. But Scripture consistently teaches the complete holiness of the believer is the work of the all-sufficient Word of God (cf. John 17:17). (25)Those who argue that the silence of the Scripture is hardly prohibitive always seem to ignore the fact that the Scriptures are indeed all-sufficient, teaching Christians all they need to know spiritually for life and godliness (2 Pet. 1:3-4). If the whole truth (John 16:12, 13) and the whole counsel of God (Acts 20:27) was given to the apostles and provided for us when the faith was once for all time delivered to the saints (Jude 3), then the one faith and the one gospel is a closed system. Since there are clear prohibitives against editing the revealed Word or teaching of Christ by addition or subtraction, it seems clear that departure from the all-sufficient Word leads to heresy.
Now this is what makes the silence of the Scripture prohibitive in regard to many things. We do not teach purgatory, because it is a later innovation and cannot be found in the all-sufficient covenant God made with Christians. We may right urge a prohibitive for sprinkling and for infant baptism on the same basis. We do not celebrate Christmas or Easter as a religious holiday for the same reasons. We deny the papacy and denominationalism because it is innovation. We infer (rightly) from Scripture that innovation denies the all-sufficiency of the text.
When instrumental music comes along, one brother, not finding any evidence in the Scripture for it in Christian worship, relied upon some type of direct guidance from the Holy Spirit. In his mind the Holy Spirit led him to believe it was all right to innovate, even though Jesus spoke against self-made religion (Matt. 15:8-14). John 16:13 teaches that the Holy Spirit did not speak on his own initiative. If this is the case, how is that the Holy Spirit is revealing in this 21st century what He did not reveal to the apostles? Either the man is self-deceived, thinking the Holy Spirit has given permission for the innovation of instrumental music in Christian worship, or the self-deceived apostles failed to fulfill the instructions of the Holy Spirit in the first century by not using them.
When God gave the instructions about worship and many other things in the first century, He gave the whole truth (John 16:12-13). Nothing was omitted--this is why we can know when people are adding or subtracting from the Word. Once all the truth was given and God hushed, there is never authority or need or approval for any man to add more. God does not need an editor.
What makes silence prohibitive? The all-sufficiency of the Word.