'Works' in the Bible

What good is it, my brothers, if a man says he has faith, but has no works? Can faith save him?

Even so faith, if it has no works, is dead in itself.

Yes, a man will say, "You have faith, and I have works." Show me your faith without works, and I by my works will show you my faith.

But do you want to know, vain man, that faith apart from works is dead?

Wasn't Abraham our father justified by works, in that he offered up Isaac his son on the altar?

You see that faith worked with his works, and by works faith was perfected;

You see then that by works, a man is justified, and not only by faith.

In the same way, wasn't Rahab the prostitute also justified by works, in that she received the messengers, and sent them out another way?

For as the body apart from the spirit is dead, even so faith apart from works is dead.