All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, so that the man of God may be thoroughly equipped for every good work. 2 Timothy 3:16-17
Man was certainly involved in the process of bringing the Bible into existence, but God wrote it in their hearts, minds and actions. This doesn’t mean that the Bible has one personality. The heart of David, the brilliance of Solomon and the logic of Paul all come out in their respective books.
But man did not make up the words of the Bible. They expressed God’s message in their own way.
Now, the Bible has been used to influence some political agenda, but I don’t see a political agenda from the writers of the Bible. Jesus paid His taxes and respected Roman authority. If anything, Jesus had a religious agenda, wanting to dethrone the arrogant Pharisees who ran the temple business and led people to hell.
That doesn’t mean Jesus stayed away from political people. Jesus asked Simon the Zealot to be his apostle. Zealots were known as Jewish political insurrectionists, who would do anything to see Rome fall. Matthew the tax collector worked with the Roman political machine, a traitor since he collected taxes from Jewish brothers and gave to the Roman authorities. Some feel Judas had political motivations in wanting Jesus to be the savior and rescue them from Roman rule.
Jesus did not pull them into his posse in order to bring down “the man,” but to change their political aspirations into spiritual aspirations.
No apostle after Jesus departed ran for a political position. They all died trying to bring the Gospel to the world.
Today, people use the Bible for their political agenda, but that does not mean it was written for that sole expressed purpose.