The Bible does not command or forbid the use of musical instruments in church. The Jews used instruments to praise God, so it is clear that using instruments is not a sin in and of itself (1 Chronicles 23:5; 2 Chronicles 29:26-27; Isaiah 38:20; Habakkuk 3:19). The New Testament mentions singing in worship but does not reference instruments, leading some churches to believe they should not be used (Matthew 26:30; Acts 16:25; Ephesians 5:19; Hebrews 2:12; James 5:13). Although historically, many opposed instruments in worship, this was done from an argument of silence not because of a clear instruction from the Bible. Organs became common in churches by the thirteenth century, and today, many churches use instruments in their worship of God. Ultimately, Christians’ freedom in Christ permits the use of instruments in worship services as long as they’re used to glorify God and enhance worship without becoming a distraction.
The New Testament does not mention instrument use in church. Many churches today still cite the lack of instruments in the New Testament as "proof" that Jesus doesn't want accompanied singing. Gradually, most churches realized that the New Testament’s silence about musical instruments doesn’t equate to a ban on them. Organs started appearing in some churches in the seventh century and were a staple by the thirteenth century. Still, many respected theologians, including John Calvin, John Wesley, Martin Luther, and Charles Spurgeon, disapproved of instruments in services, and the Greek Orthodox Church still does not use instruments.
Churches who believe instruments should not be used point to several scriptures in the New Testament that mention singing without instruments, but there is no specific edict against instruments in church. As with any tool, instruments use should glorify God (1 Corinthians 10:31), help others in worshiping God, without distracting from that worship. The early church may have been prudent to reject a worship tool that was identified with idolatry, but we should use our freedom in Christ responsibly and worship as the Holy Spirit leads us to. If instruments add value to the church service, we should feel free to use them.