Obedience without Faith is Legalism;
Faith without Obedience is Cheap Grace (aka hyper grace).
Legalism is running away from bondage of sin into another similar bondage; while Cheap Grace is never getting out of bondage of sin at all – believing that setting free from guilt of sinning is setting free from bondage of sin.
Faith and Obedience will travel together for it is by Grace through Faith that Obedience is made possible.
Faith in Christ will produce Obedience in Christ !
John 14:21
Whoever has my commandments and keeps them, he it is who loves me. And he who loves me will be loved by my Father, and I will love him and manifest myself to him.
Rom 16:25-26
Now to him who is able to strengthen you according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery that was kept secret for long ages but has now been disclosed and through the prophetic writings has been made known to all nations, according to the command of the eternal God, to bring about the obedience of faith…