Carl Friedrich Keil and Franz Delitzsch Old Testament Commentary

Use of the Water of Purification. - The words in Num 19:10, "And it shall be to the children of Israel, and to the stranger in the midst of them, for an everlasting statute," relate to the preparation and application of the sprinkling water, and connect the foregoing instructions with those which follow. - Num 19:1-13 contain the general rules for the use of the water; Num 19:14-22 a more detailed description of the execution of those rules. Num 19:11-13 Whoever touched a corpse, "with regard to all the souls of men," i.e., the corpse of a person, of whatever age or sex, was unclean for seven days, and on the third and seventh day he was to cleanse himself (התחטּא, as in Num 8:21) with the water (בּו refers, so far as the sense is concerned, to the water of purification). If he neglected this cleansing, he did not become clean, and he defiled the dwelling of Jehovah (see at Lev 15:31). Such a man was to be cut off from Israel (vid., at Gen 17:14). Num 19:14-16 Special instructions concerning the defilement. If a man died in a tent, every one who entered it, or who was there at the time, became unclean for seven days. So also did every "open vessel upon which there was not a covering, a string," i.e., that had not a covering fastened by a string, to prevent the smell of the corpse from penetrating it. פּתיל, a string, is in apposition to צמיד, a band, or binding (see Ges. 113; Ewald, 287, e.). This also applied to any one in the open field, who touched a man who had either been slain by the sword or had died a natural death, or even a bone (skeleton), or a grave. Num 19:17-20 Ceremony of purification. They were to take for the unclean person some of the dust of the burning of the cow, i.e., some of the ashes obtained by burning the cow, and put living, i.e., fresh water (see Lev 14:5), upon it in a vessel. A clean man was then to take a bunch of hyssop (see Exo 12:22), on account of its inherent purifying power, and dip it in the water, on the third and seventh day after the defilement had taken place, and to sprinkle the tent, with the vessels and persons in it, as well as every one who had touched a corpse, whether a person slain, or one who had died a natural death, or a grave; after which the persons were to wash their clothes and bathe, that they might be clean in the evening. As the uncleanness in question is held up as the highest grade of uncleanness, by its duration being fixed at seven days, i.e., an entire week, so the appointment of a double purification with the sprinkling water shows the force of the uncleanness to be removed; whilst the selection of the third and seventh days was simply determined by the significance of the numbers themselves. In Num 19:20, the threat of punishment for the neglect of purification is repeated from Num 19:13, for the purpose of making it most emphatic. Num 19:21-22 This also was to be an everlasting statute, that he who sprinkled the water of purification, or even touched it (see at Num 19:7.), and he who was touched by a person defiled (by a corpse), and also the person who touched him, should be unclean till the evening, - a rule which also applied to other forms of uncleanness.