The apostle Paul makes it very clear that to add anything to the Gospel of Christ is a damnable offense.

Galatians 1:8 But even if we or an angel from heaven should preach to you a gospel contrary to the one we preached to you, let him be accursed. As we have said before, so now I say again: If anyone is preaching to you a gospel contrary to the one you received, let him be accursed.

By making divine healing a part of the Gospel, men like A. B. Simpson and Charles Fox Parham did just that. However, Parham seemed to take the subject much further than Simpson, teaching that unless one preaches healing along with the forgiveness of sins, they weren't preaching the full Gospel.

Here's the YouTube link!

https://youtu.be/HMYtddh4ySI