These verses set forth the spiritual ground on which the distinction between clean and unclean is based. Compare the marginal references and Leviti…

For I am the Lord your God. —As the Lord who is their God is Himself holy, His people, in order to enjoy perfect communio…

For I [am] the Lord your God
Their Lord, and therefore had a right to enjoin them what laws he pleased concerning th…

These laws seem to have been intended,

1. As a test of the people's obedience, as Adam was forbidden to eat from the tree of knowledge…