Holiness
The New Testament obviously knew why it referred to the believers of a church as "the saints," why it spoke of the "holy people" and why it called the church a "holy temple." In all these expressions "holy" always connotes "separated." Not separated in a ghetto, in religious self-satisfaction or in cultural or intellectual isolation, but separated to a different style of life and to new forms of life which realize what God wants society to be, in contrast to the structures of a sick society that is far from God."
From Jesus and Community by Gerhard Lohfink, p. 135








