Numbers 6:9

9.And if any man die very suddenly. Here is prescribed what must be done, if a defilement should have been contracted which no precaution could have prevented. If a Nazarite should have willingly and knowingly entered a house of mourning, or should have come near a dead body, his consecration would have been violated not without, sin; but, in the case of a sudden death, the error was excusable, though God commands that it should be expiated; for whatever time of the vow had passed He counts for nothing, nor will it be taken into account. This was no light punishment, that he, who had been guilty of no fault, should begin to pay his vow altogether afresh. Besides the loss of the time, a sacrifice is also added, whereby he who was polluted should prepare himself for a new consecration. But, because this consecration was voluntary, none could complain of the immoderate rigor to which he had subjected himself of his own accord. Meanwhile, it was shewn how precious to God is the purity of His worship. (337) Two Hebrew words from different roots, though they are of kindred signification, are used, by which mode of speaking Moses wished more fully to express the unexpected nature of the death. For, in my opinion, it is puerile of the Jews to understand the first of a bloody murder, the other of a sudden death.