The poster has a variety of interests, and Latin is surely one of them. Is it for holy purposes? I have no idea. The original is about a love affair that turns bad, cut he keeps crawling back.
I think the video is a nod to Roman poets before medieval minstrels took over. The classical pronunciation is first-rate. The guys taking part in the video almost amount to Latin scholars, and hip-high ones.
I had to rewind many times to read the Latin. I looked up “summat”, which is British for “something”. Repto is I crawl (like a reptile). X out the live caption if it pops up.
I remember that my brother loved that word estne so much he said it all the time.
Estne translated: is it or do you? He heard it in class a lot. I think the way he meant it was, do you understand?? He answered for us: No!