Marriage #34
34. (19) Conjugial love depends upon the wife's love, and such too is the husband's love reciprocally; the wife's love does not depend on her husband's love. The reason is that just as the will acts on the understanding, good acts on truth; that is why it is said that a man ought to cleave to his wife. The reverse is true of those who are not in conjugial love.
Numbers 1:52-53
52
The children of Israel shall pitch their tents, every man by his own camp, and every man by his own standard, according to their divisions.
53
But the Levites shall encamp around the Tabernacle of the Testimony, that there may be no wrath on the congregation of the children of Israel: and the Levites shall be responsible for the Tabernacle of the Testimony."