The phrase “Be holy, for I am holy” comes from the Bible and is found in both the Old and New Testaments:

Leviticus 11:44 (KJV): “For I am the Lord your God: ye shall therefore sanctify yourselves, and ye shall be holy; for I am holy…”

1 Peter 1:16 (KJV): “Because it is written, Be ye holy; for I am holy.”

The phrase means that God is calling His people to live set-apart, morally pure, and righteous lives, reflecting His character. Being holy involves being dedicated to God, avoiding sin, and living in a way that honors and glorifies Him. It’s about aligning one’s actions, thoughts, and intentions with God’s standards, rather than conforming to the ways of the world.