Galatians 2:6

6 Moreover, [no new requirements were made] by those who were reputed to be something--though what was their individual position and whether they really were of importance or not makes no difference to me; God is not impressed with the positions that men hold and He is not partial and recognizes no external distinctions--those [I say] who were of repute imposed no new requirements upon me [had nothing to add to my Gospel, and from them I received no new suggestions].

Here we can see some of the problems that Paul had with the leadership of the church back in Jerusalem. If Paul was really sure that someone had been appointed by God to be in leadership, he wouldn’t have written: those who were reputed to be something. Paul is questioning these so called Christians leaders here to the Galatians. Writing that whether they were important or not, is not showing any confidence in their calling by our Father as leaders. When Paul wrote about his own calling he always gave glory to God, here with these leaders he doesn’t. 

Think of what was actually happening in Paul’s life. Paul was being shown by the Holy Spirit our Freedom in Christ. Our Father wasn’t just showing him through words, He was showing him His miraculous power to confirm what He was telling him. Paul was seeing and hearing things men just don’t hear, 2 Corinthians 12:1-7. Paul actually wrote that because of Christ, he was free to do anything, 1 Corinthians 6:12, 10:23. Paul knew beyond any shadow of a doubt that he was being shown that Jesus was always our Shepherd and that He would never leave us or forsake us. Then these so called Christian leaders from Jerusalem show up in Galatia and try to tell the people that they have to work for our Father’s favor. Paul just wasn’t the type of man to let that kind of misrepresentation of the Truth slide by. 

Here is a great place to look at what our Father had Paul write in Romans.

For the creation (nature) was subjected to frailty (to futility, condemned to frustration), not because of some intentional fault on its part, but by the will of Him Who so subjected it—[yet] with the hope. Romans 8:20

Paul was shown the Truth that our Father intentionally made us to fail when we think that we have to first do things. 

For God has consigned (penned up) all men to disobedience, only that He may have mercy on them all [alike]. Romans 11:32

Paul knew that our Father had created us to have to totally depend on Him. Paul was shown the glorious Truth that Jesus came and died and that He did away with all the requirements of works. Our Father showed Paul the true meaning and freedom of Grace, Romans 8:2. These so called Christian leaders from Jerusalem were completely going against what Paul was shown and that is why he questions their authority. Here is the powerful Truth: the Holy Spirit will cause us to do the exact same thing to the false teaching of human works and efforts. Here is another great Truth, our Father will allow us to be attacked for it, just as He allowed Paul to be attacked, and it will show forth His glorious power through us, Romans 5:3.