ψυχρός

And whosoever shall give to drink unto one of these little ones a cup of cold water only in the name of a disciple, verily I say unto you, he shall in no wise lose his reward.

I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.

So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth.