Your posting:
But faith does not encompass all that is required for salvation.
Jesus thought so.
Luke 7:50 And he said to the woman, “Your faith has saved you; go in peace.”
You may also want to read John 8:10-11 where he saved the woman who was going to be stoned.
Perhaps you should understand that Jesus also said “Go, [and] from now on do not sin any more.”
Then Jesus straightened up and said to her, “Woman, where are they? Has no one condemned you?”d 11She replied, “No one, sir.” Then Jesus said, “Neither do I condemn you. Go, [and] from now on do not sin any more.”]John 8:10-11
There will still be a judgement day. So we all have reponsibility to follow God’s will.
Sure we are to go and sin no more. But if we do, that does not affect the salvation we receive by grace through faith.