As an Indonesian, I automatically perceive Arabic chants as Islamic. Well I don’t speak Arabic, so when I listened the above hymn it is very very hard for me to accept that it is a part of Christian tradition. I have to listen very carefully for any word I am familiar with; I think I heard some “Kyrie”s there. Also, I live with a Protestant family, and the neighbour next door is a Muslim family, so I am wondering if they think I am listening to an Islamic prayer, as IMO Orthodox Christianity, let alone the Coptic rite, is not widely known in this part of the world. But I have loved Arabic chants for a few years already, and somehow listening to this song makes me want to attend a Coptic service someday.
Update: I played the video again and realised that the video actually begins in English (…and forgive us our sins)! Gosh, it does take time!
Another update: not only does the video begin in English, but the first half of the video seems to be entirely in English! So I can confirm that my Indonesian ears are more sensitive to the Arabic tone than the actual prayer.