Faith means nothing if its tied to willful disobedience. Just like saying I Love You to a significant other will mean absolutely nothing if you treat the person like garbage in return. Love is usually tied to the actions behind it and so is Faith. If you truly Love Jesus you will want to obey the commandments.
We keep Gods commandments because we ARE saved NOT to try to get saved.
Furthermore we keep the commands because the Spirit teaches us and reminds us about those things. Its the spirit of truth which affirms them to be good and holy. We are wrong but Gods command is right. Abraham was counted as righteous because he believed Gods command. It wasn't because he believed that God exists, but that he believed that Gods command was the truth and the way. Christ said that he is the way, truth and life. Therefore the spirit guides us to believe that his commands are the way we must live, the truth which must guide us, and the life that we must follow in order to live. No christian can possibly throw out the Lords commands because the spirit will not allow him to do that, and a Christian will be very contrite when they fail. I believe its all a work of the spirit.
The scriptures are clear. Christians keep the words of Christ and His apostles, and they live by them because the Spirit guides them this way.
John 14:6 Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me.
Ephesians 4:20 That, however,
is not the way of life you learned 21 when you heard about Christ and were taught in him in accordance with
the truth that is in Jesus. 22 You were taught, with regard to your former way of life, to put off your old self, which is being corrupted by its deceitful desires; 23 to be made new in the attitude of your minds; 24 and to put on the new self, created to be like God in true righteousness and holiness.
25 Therefore each of you must put off falsehood and speak truthfully to your neighbor, for we are all members of one body. 26 “In your anger do not sin”[d]: Do not let the sun go down while you are still angry, 27 and do not give the devil a foothold. 28 Anyone who has been stealing must steal no longer, but must work, doing something useful with their own hands, that they may have something to share with those in need.
John 14:23 Jesus replied, “Anyone who loves me will obey my teaching. My Father will love them, and we will come to them and make our home with them. 24 Anyone who does not love me will not obey my teaching. These words you hear are not my own; they belong to the Father who sent me.
25 “All this I have spoken while still with you. 26 But the Advocate, the Holy Spirit, whom the Father will send in my name,
will teach you all things and will remind you of everything I have said to you.