Numbers 12:14

If her father had but spit in her face - This appears to have been done only in cases of great provocation on the part of the child, and strong irritation on the side of the parent. Spitting in the face was a sign of the deepest contempt. See Job 30:10 ; Isaiah 50:6 ; Mark 14:65 . In a case where a parent was obliged by the disobedient conduct of his child to treat him in this way, it appears he was banished from the father's presence for seven days. If then this was an allowed and judged case in matters of high provocation on the part of a child, should not the punishment be equally severe where the creature has rebelled against the Creator? Therefore Miriam was shut out of the camp for seven days, and thus debarred from coming into the presence of God her father, who is represented as dwelling among the people. To a soul who knows the value and inexpressible blessedness of communion with God, how intolerable must seven days of spiritual darkness be! But how indescribably wretched must their case be who are cast out into outer darkness, where the light of God no more shines, and where his approbation can no more be felt for ever! Reader, God save thee from so great a curse!

Several of the fathers suppose there is a great mystery hidden in the quarrel of Miriam and Aaron with Moses and Zipporah. Origen (and after him several others) speaks of it in the following manner: -

"
1. Zipporah, a Cushite espoused by Moses, evidently points out the choice which Jesus Christ has made of the Gentiles for his spouse and Church.

The jealousy of Aaron and Miriam against Moses and Zipporah signifies the hatred and envy of the Jews against Christ and the apostles, when they saw that the mysteries of the kingdom of heaven had been opened to the Gentiles, of which they had rendered themselves unworthy.

The leprosy with which Miriam was smitten shows the gross ignorance of the Jews, and the ruinous, disordered state of their religion, in which there is neither a head, a temple, nor a sacrifice.

4. Of none but Jesus Christ can it be said that he was the most meek and patient of men; that he saw God face to face; that he had every thing clearly revealed without enigmatical representations; and that he was faithful in all the house of God." This, and much more, Origen states in the sixth and seventh homilies on the book of Numbers, and yet all this he considers as little in comparison of the vast mysteries that lie hidden in these accounts; for the shortness of the time, and the magnitude of the mysteries, only permit him "to pluck a few flowers from those vast fields - not as many as the exuberance of those fields afford, but only such as by their odour he was led to select from the rest." Licebat tamen ex ingentibus campis paucos flosculos legere, et non quantum ager exuberet, sed quantum ordoratui supiciat, carpere .