authority?

1 Timothy 1:1–11 ESV

1 Paul, an apostle of Christ Jesus by command of God our Savior and of Christ Jesus our hope, 2 To Timothy, my true child in the faith: Grace, mercy, and peace from God the Father and Christ Jesus our Lord. 3 As I urged you when I was going to Macedonia, remain at Ephesus so that you may charge certain persons not to teach any different doctrine, 4 nor to devote themselves to myths and endless genealogies, which promote speculations rather than the stewardship from God that is by faith. 5 The aim of our charge is love that issues from a pure heart and a good conscience and a sincere faith. 6 Certain persons, by swerving from these, have wandered away into vain discussion, 7 desiring to be teachers of the law, without understanding either what they are saying or the things about which they make confident assertions. 8 Now we know that the law is good, if one uses it lawfully, 9 understanding this, that the law is not laid down for the just but for the lawless and disobedient, for the ungodly and sinners, for the unholy and profane, for those who strike their fathers and mothers, for murderers, 10 the sexually immoral, men who practice homosexuality, enslavers, liars, perjurers, and whatever else is contrary to sound doctrine, 11 in accordance with the gospel of the glory of the blessed God with which I have been entrusted.