Ecclesiastes 4:4 Again, I saw that for all toil and every skillful work a man is envied by his neighbor. This also is vanity and grasping for the wind.
A few months ago, a couple who had failed in starting an animal shelter began posting signs attacking the owner of the successful animal shelter where I volunteer. I pointed out to him that this is normal; success produces envy.
If you succeed in Christian service, you will be the target of envy. Period. It's automatic.