2. Or if a soul touch any unclean thing. This precept seems not only to be superfluous but also absurd; for Moses had already shewn sufficiently how uncleanness contracted by touching a dead body, or any other unclean thing, was to be purged, and had prescribed an easy and inexpensive mode of purification. This repetition appears, therefore, to be useless. But to impose a heavier punishment on an offense which is extenuated by the pretext of error, than where there is no allusion to error, is unjust. But we must remember that not only is the uncleanness itself here punished, but; the inadvertence, from whence it arose that he who was polluted omitted the purification. For it may be that those who thus lie torpid in their sins pollute for a season the service of God. No wonder, then, that a heavier punishment is inflicted, where error, springing from supine and gross security, begets still more sins, that thus believers may be aroused to greater vigilance. Let the reader, therefore, recollect that the offense which is now adverted to did not consist in the mere touching of a dead body, but in the thoughtlessness itself; for if all would diligently meditate on the Law of God, forgetfulness would not so easily steal over them, whereby the distinction between right and wrong is lost. The same is the reason for the following ordinance, where Moses subjects to the same punishment any one who shall have touched an unclean or defiled man: thus the very contact of a woman at a particular period produces pollution.