If the bible is inspired by God, why did the Psalms rip off the poetry style and even particular lines from...?

For Christians, the bible is our only source and reference. So any **** that you post here doesnt matter to any of us and will not change our perspective or beliefs. If you dont want to believe that the bible is inspired by God, dont believe!!!. And Talking of truth, the Bible is the truth that will set you free...Not any **** or crap that you pick from somwhere