It features an introduction by founder "JC," and testimonials from believers like, "They say we all have our own crosses to bear. It's just that when I bear mine, I engage my obliques."
"With Cross Fit, you can turn every daily routine into a divine calorie burning experience," a voice-over declares. The fake workout involves exercising with a wooden cross strapped to your back.
The video was posted in May, but gained a lot more attention when CrossFit posted it on its official Facebook page on June 4.
Some viewers are outraged at the disrespectful use of a Christian symbol, while others enjoyed the tongue-in-cheek video.
Others simply came for the debate, possibly directed by a Reddit thread on r/atheism posted by one of the creators of "Cross Fit by Jesus."
Let us know your thoughts in the comments.