2 Kings
8And when Eliseus, the man of God, had heard this, to wit, that the king of Israel had rent his garments, he sent to him, saying: Why hast thou rent thy garments? let him come to me, and let him know that there is a prophet in Israel. 9So Naaman came with his horses and chariots, and stood at the door of the house of Eliseus: 10And Eliseus sent a messenger to him, saying: Go, and wash seven times in the Jordan, and thy flesh shall recover health, and thou shalt be clean. 11Naaman was angry, and went away, saying: I thought he would have come out to me, and standing, would have invoked the name of the Lord his God, and touched with his hand the place of the leprosy, and healed me. 12Are not the Abana, and the Pharphar, rivers of Damascus, better than all the waters of Israel, that I may wash in them, and be made clean? So as he turned, and was going away with indignation, 13His servants came to him, and said to him: Father, if the prophet had bid thee do some great thing, surely thou shouldst have done it: how much rather what he now hath said to thee: Wash, and thou shalt be clean? 14Then he went down, and washed in the Jordan seven times, according to the word of the man of God; and his flesh was restored, like the flesh of a little child: and he was made clean.
In other words, the consecration must be done exactly as required.