The Jews were under a completely different and distinct religious system than the one under which Christians serve (cf. Jeremiah 31:31-34; Hebrews 8:7-13). Christ and the Christian system were certainly foreshadowed in the Old Testament, being woven into the fabric of Scripture from the beginning. Types and shadows abound in the Old Testament (Colossians 2:17; Hebrews 8:5; 10:1). The various aspects of the Old Covenant were clearly designed and preordained to prefigure and foreshadow the New - they were “copies of the true” (Hebrews 9:24). Israelite life and worship conducted in 1500 B.C was preplanned and divinely orchestrated to anticipate Christian living after A.D 30. But one must examine each act of worship in order to determine weather an act or practice under the Mosaic system has any bearing on Christian worship. How may one ascertain which aspects of Jewish worship are perpetuated in Christian worship? Obviously, one must go to the New Testament to see what Jesus and His emissaries said, and how first-century Christians then carried out those directives. Doing so forces one to the conclusion that Christians did not incorporate instrumental music into their musical worship in the first-century-though the first Christians were Jews (Miller 8).
But before faith came, we were kept in custody under the law, being shut up to the faith which was later to be revealed. Therefore the Law has become our tutor to lead us to Christ, so that we may be justified by faith. But now that faith has come, we are no longer under a tutor. For you are all sons of God through faith in Christ Jesus (Galatians 3:23-26).
When you were dead in your transgressions and the uncircumcision of your flesh, He made you alive together with Him, having forgiven us all our transgressions, having canceled out the certificate of debt consisting of decrees against us, which was hostile to us; and He has taken it out of the way, having nailed it to the cross. When He had disarmed the rulers and authorities, He made a public display of them, having triumphed over them through Him.Therefore no one is to act as your judge in regard to food or drink or in respect to a festival or a new moon or a Sabbath day— things which are a mere shadow of what is to come; but the substance belongs to Christ (Colossians 3:13-17).
"Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill” (Matthew 5:17).
God, after He spoke long ago to the fathers in the prophets in many portions and in many ways, in these last days has spoken to us in His Son, whom He appointed heir of all things, through whom also He made the world (Hebrews 1:1-2)
"He who rejects Me and does not receive My sayings, has one who judges him; the word I spoke is what will judge him at the last day. (John 12:28)
(Romans 15:4)For whatever was written in earlier times was written for our instruction, so that through perseverance and the encouragement of the Scriptures we might have hope.
(Leviticus 10:1-2) Now Nadab and Abihu, the sons of Aaron, took their respective firepans, and after putting fire in them, placed incense on it and offered strange fire before the Lord, which He had not commanded them. And fire came out from the presence of the Lord and consumed them, and they died before the Lord.Nadab and Abihu did not offer God the worship He desired, thus they were subsequently destroyed. God is the audience of worship. God is the only one worthy of worship and God determines what He finds pleasing. We must offer God the worship that He desires, for that is the worship He deserves.