Not of human origin

It says in Galatians 1.11-12 says: "For I want you to know, brothers and sisters, that the gospel that was proclaimed by me is not of human origin; for I did not receive it from a human source, nor was I taught it, but I received it through a revelation of Jesus Christ." Here, Paul is saying that the good news (gospel) that he shared with the Galatians was not something that was of human origin. Paul did not receive it from a human source ----- therefore, he proclaimed the gospel as not being from a human source. Instead he received it by divine revelation and this revelation was of Jesus Christ. How does that change things when Paul says this was not from a human source? This is a good question, especially when we look toward scripture. Is scripture of human origin or is it of divine origin? If it is of human origin, what kind of impact does scripture have on our lives? If it is of divine origin, what kind of impact does scripture have on our lives?