This simile alludes to the legal type of the High-Priest, who might marry none but a Virgin.
Ecclesiastes declares the absolute vanity of all things under the sun. Biblical vanity does not refer to an excessive care on good looks. Biblical vanity is emptiness or worthlessness.
God is a God of order. He is also a God who divides. Even on the first day of creation, He divided the light from the darkness. And, He expects His servants to rightly divide His word (2Timothy 2:15).
How, and in what respects Christ may be called a Lamb?
There is no higher name or title to set forth dignity amongst men, than kings or mighty potentates.