Just because we are unable ALONE to acquire God's grace and be pleasing in His eye doesn't mean we don't have a responsibility to fulfill His commands. Now, if you say Christ is your King, but you disobey your King, what do you think the King will do to you? Will He excuse you from your responsibility because "you couldn't, obey God anyway"? If God gives a command, it implies that a person has the ability to follow it. Or not to follow it. Based on our response to God's graces (which are NOT irrestistible), the Scriptures clearly say we will be judged.
All the faith in the world is worthless without love. 1 Cor 13:2.
I would be careful about your confidence in faith alone.
Regards
My confidence is in God's grace through faith in Christ's atoning sacrifice and His glorious resurrection.
Not of works, lest any man should boast. For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them." -- Eph. 2:8-10"For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: