Would this way of speaking be taught or encouraed by the Omoto religion?
The equivalent in Christianity to speaking in tongues?
Well AFAIK they were actual words and sentences, unlike the speaking in tongues. It could very well have been a part of Omoto's way of doing things.. they did have chinkon kishin practices. But at any rate, O-sensei's thought process and understanding of the universe was Omoto-influenced to say the least, so no matter how you slice it I think the things that came out of his mouth must be understood through the lens of that religion, but I guess we all realize that.