Precision obedience?

 I have seen people comment on "precision obedience." One preacher said, "God does not expect us to be able to conquer sin or be perfect, so he gave us the perfect acts of worship, and how to perform them perfectly. Thus those who use instruments in music are of their father the devil."

Consider what God said. "[God] also made us sufficient as servants of a new covenant; not of the letter, but of the Spirit. For the letter kills, but the Spirit gives life." (2 Cor 3:6)

Jesus, when declaring how His disciples would be known, did not say, "By this will all men know you're My disciples: if you have the correct doctrine about worship services, in the correct way, being set aside by a lack of pianos." Rather He said, "By this all people will know that you are my disciples, if you have love for one another.” (John 13:25). Thus, "you were called to freedom, brothers...For the whole law is fulfilled in one word: “You shall love your neighbor as yourself.” (Gal 5:13-14)

Is slavery ok or: are you a slave, too?

BQ: It's a great thing to want to be Christian, but it's a greater thing to know what that entails. What some don't realize is that being a Christian costs a lot. In fact, God says,

"Do you not know that when you present yourselves to someone as slaves for obedience, you are slaves of the one whom you obey, either of sin resulting in death, or of obedience resulting in righteousness?" (Rom 6)

Wait! Slaves? Obedience? What? God works hard for us—in fact, He worked Himself to death. It is therefore no surprise that he expresses some incredulity and says, "You have not yet resisted to the point of shedding blood in your striving against sin."  (Heb 12:4) That may be a lot to take in, but God also gives us the power to live up to it—He is both King and Comforter! Let's go for it!