The Colossian Letter

What were the battles that the church faced with the legalists and Gentile preachers? How does false religion teach men to be philosophers? What is the 'will worship' that Paul is concerned with? How do we see that it is impossible to be saved outside of the Grace in Christ? What was the reason Christ gave His disciples special powers to preach the Gospel? Which was inspired the men who wrote the Word or the Word itself?