because it is written, "You shall be holy; for I am holy."
 This is just the difference between the Christian and the Jew. The Christian does not belong to the world, and consequently is not bound by accidents of time. He has everlasting life now, and is a heavenly person even while upon the earth. This is Christianity. Thus he says to the Jews addressed that they were not a people (that is, in the days of their unbelief), but are now. So far was their believing in Christ from taking them out of the people, it is then alone that they became, a people. They "were not a people, but now are the people of God;" they" had not obtained mercy, but now have obtained mercy." It is a quotation from Hosea 2:1-23.
