Guess I don't understand how this answers the original question:
"Is faith or works necessary for Salvation ?"
Works are not needed to be saved. They are needed to show the world you ARE saved.
{14} "You are the light of the world. A city set on a hill cannot be hidden;
{15} nor does
anyone light a lamp and put it under a basket, but on the lampstand, and it gives light to all who are in the house.
{16} "Let your light shine before men in such a way that they may see your good works, and glorify your Father who is in heaven. Matthew 5:14-16 (NASB)
{20} because by the works of the Law no flesh will be justified in His sight; for through the Law comes the knowledge of sin. Romans 3:20 (NASB)
{27} Where then is boasting? It is excluded. By what kind of law? Of works? No, but by a law of faith.
{28} For we maintain that a man is justified by faith apart from works of the Law. Romans 3:27-28 (NASB)
{15} "We
are Jews by nature and not sinners from among the Gentiles;
{16} nevertheless
knowing that a man is not justified by the works of the Law but through faith in Christ Jesus, even we have believed in Christ Jesus, so that we may be justified by faith in Christ and not by the works of the Law; since by the works of the Law no flesh will be justified. Galatians 2:15-16 (NASB)
{2} This is the only thing I want to find out from you:
did you receive the Spirit by the works of the Law, or by hearing with faith? Galatians 3:2 (NASB)
{8} For by grace you have been saved through faith; and that not of yourselves, it is the gift of God; {9} not as a result of works, so that no one may boast. {10} For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them. Ephesians 2:8-10 (NASB)
The new creation comes before the works. Salvation comes before the works. And it's critically important to remember that the works being discussed here are not works of keeping the Law of Moses. That system has been abolished. (Read the book of Hebrews for confirmation of this fact.)
The works being described here are the kind of works Jesus did on earth when He was moved by compassion to serve others. It means having a servant's heart and doing things for people that let them see Christ in you.
Again: it is NOT following a set of rules or regulations. It is seeing people in need and helping them.
{17} Instruct those who are rich in this present world not to be conceited or to fix their hope on the uncertainty of riches, but on God, who richly supplies us with all things to enjoy. {18} Instruct them to do good, to be rich in good works, to be generous and ready to share, {19} storing up for themselves the treasure of a good foundation for the future, so that they may take hold of that which is life indeed.
1 Timothy 6:17-19 (NASB)
Finally, with regard to what James writes here:
{17} Even so
faith, if it has no works, is dead, being by itself. James 2:17 (NASB)
A dead tree produces no fruit. A dead faith produces no works, therefore while faith alone saves us, good works are the expression of a living faith. Good works should necessarily follow saving faith, just as James also writes:
{18} But someone may
well say,
"You have faith and I have works; show me your faith without the works, and I will show you my faith by my works." James 2:18 (NASB)
Faith saves us. Good works show others how vital our faith is. I really don't get the source of any disagreement over this.