Leviticus 18:19

Also thou shalt not approach. — Literally, thou shalt not approach. The marriage laws are now followed by sexual impurities, which to some extent are suggested by the subjects that had necessarily to be discussed or hinted at in regulating the alliance in question.

As long as she is put apart. — Put apart, i.e., seven days. (See Leviticus 15:19.) For consorting with her without being aware of her condition the man contracted defilement for seven days (see Leviticus 15:24), and for committing this gross act presumptuously, both parties to it were visited with death. (See Leviticus 20:18.) Ezekiel refers to the transgression of this law as one of the heinous sins perpetrated by the people of Israel (Ezekiel 18:16; Ezekiel 22:10).