Finally, the man believed to be the child's father interjects, and removes the child from the situation before the video cuts out. But 24 seconds into the video, the priest smacks the child on the cheek, eliciting louder cries and a gasp from the person filming. "Here. And then, we are going to embrace the little guy, because he will have become a little more Christian".
People have more than enough reasons to be outraged these days.
The priest got irritated and was speaking loudly, in a bid to raise his voice over the screams.
Other French-speaking Reddit users have tried to translate what's being said in the video.
NAIJ.com gathers that at the start of the ceremony, the woman, believed to be the child's mother, was carrying the child while the priest began proceedings.
The video has already been viewed over a million times on YouTube.
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When the baby continues to cry he appears to slap the child across the face. "I was saying "be quiet" but he wouldn't calm down", the priest told France Info radio on Friday.
"And yet another reason why I'm not bringing up my kids as Catholics", wrote a Reddit user.
Meanwhile, NAIJ.com previously reported that a Catholic priest, Reverend Father Lucien Ambunga, who was inflicted with the deadly Ebola virus, survived it.
The exact date of the incident are unclear, although the video surfaced on the internet on Wednesday.
He hugs the child to his chest, possibly to try and calm him down.