because it is written, "You shall be holy; for I am holy."
    See Leviticus 11:44-45; Leviticus 19:2; Leviticus 20:7. That God’s people must be holy as God is holy is a common refrain in Scripture (see also Ezekiel 20:12; Ephesians 1:4; 1 Thessalonians 4:3; Revelation 22:11).