Since Paul wrote over half of the New Testament, why would anyone be wary of Paul (unless they have a hidden agenda)?
Paul received his thoughts and words from God the Holy Spirit, and everything he wrote was based upon the teachings of Christ. The Lord Jesus Christ did not stop teaching after He ascended back to Heaven, but visited Paul several times to show him things which had not been formerly revealed.
There are many today who are making a huge effort to discredit Paul, claiming that his teachings are in conflict with those of Christ and the other apostles. THAT IS ABSOLUTE NONSENSE, as we learn from the apostle Peter, who placed all of Paul's epistles on the same level as the Old Testament Scriptures.
2 PETER 3
14 Wherefore, beloved, seeing that ye look for such things, be diligent that ye may be found of him in peace, without spot, and blameless.
15 And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also according to the wisdom given unto him hath written unto you;
16 As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
17 Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness.
18 But grow in grace, and in the knowledge of our Lord and Saviour Jesus Christ. To him be glory both now and for ever. Amen.
Peter warns Christians to "
beware lest ye also, being led away with the error of the wicked". That includes making light of Paul's epistles.