"What then is obedience?"
"Under the Gospel it is this, that after being adopted by God for his sons, and endued with a filial spirit, we conduct ourselves as becomes obedient children, doing with our whole heart and with all our strength those things which we know that our heavenly Father requires us to perform, and giving all heed not to offend him in any thing. That is, that we put off the old man with his works, and desist from all our former sins; that we walk not after the flesh, but by the spirit mortify the deeds of the body. In short, that we continue in the habitual practice of no sin, but be endued with every Christian virtue; so that, if a fault occur in our pious course, it may proceed not from any evil disposition or design, from any habit or custom, but from some weakness of human nature or from ignorance: all which indeed the Scripture is wont to comprise under the name of penitence: and as such an obedience is not servile, but filial and voluntary."
This comes from chapter nine of the Racovian Catechism. The catechism is Socinian and anti-Trinitarian in its theology. Faustus Socinus and followers of Michael Servetus produced the document in Poland in 1580.