'Works' in the Bible

but knowing that a man is not justified on the principle of works of law nor but by the faith of Jesus Christ, we also have believed on Christ Jesus, that we might be justified on the principle of the faith of Christ; and not of works of law; because on the principle of works of law no flesh shall be justified.

This only I wish to learn of you, Have ye received the Spirit on the principle of works of law, or of the report of faith?

He therefore who ministers to you the Spirit, and works miracles among you, is it on the principle of works of law, or of the report of faith?

For as many as are on the principle of works of law are under curse. For it is written, Cursed is every one who does not continue in all things which are written in the book of the law to do them;

Now the works of the flesh are manifest, which are fornication, uncleanness, licentiousness,