Whether the person baptised is to be wholly immersed, and that whether once or thrice, or whether he is only to be sprinkled with water, is not of the least consequence: churches should be at liberty to adopt either, according to the diversity of climates, although it is evident that the term baptise means to immerse, and that this was the form used by the primitive Church.

John Calvin, Institutes of the Christian Religion (Bellingham, WA: Logos Research Systems, Inc., 1997).