When Aarons Sons wanted to make it more than a shadow of good things to come (Christ) they wanted to make it into one of those self edifying works and added there own personal touch. The fire consumed them and did not burn the ceremonial
clothing. Teaching us walk by faith the unseen eternal
Leviticus 10:1-3 King James Version (KJV)And Nadab and Abihu, the sons of Aaron, took either of them his censer, and put fire therein, and put incense thereon, and offered strange fire before the Lord, which he commanded them not.And there went out fire from the Lord, and devoured them, and they died before the Lord.Then Moses said unto Aaron, This is it that the Lord spake, saying, I will be sanctified in them that come nigh me, and before all the people I will be glorified. And Aaron held his peace.
Not the flesh of mankind will be sanctified as glorified flesh . No sign gifts used to confirm a person got wet for a moment .