A robot priest to mark 500 years since the Reformation, triggered debate about the ethics, credibility, and effectiveness of robots as religious preachers.

Introduced by the Protestant Church in Wittenberg, Germany, to provoke discussion about whether machines have a place within the clergy, BlessU-2 provides blessings in five languages and recites over 40 verses from the Bible. 

However, the bot also triggered debate on whether or not robots will induce religious decline, and about the potential for robots to replace religious jobs. 

Wittenberg is where Martin Luther sparked the Protestant Reformation by nailing his 95 theses to a church door in the town calling for religious reform.