Leviticus 21:13 - Wesley's Explanatory Notes

In her virginity — Or, a virgin, partly because as he was a type of Christ, so his wife was a type of the church, which is compared to a virgin, and partly for greater caution and assurance that his wife was not a defiled or deflowered person. Most of these things are forbidden to all the priests; and here to the high — priest, to shew that he also, and he especially is obliged to the same cautions.