It is written, “Be holy, for I am holy.” 1 Peter 1:16
Do you know you cannot serve God unless you are separated? In the Scripture, that word refers to being set apart for a specific task or purpose.
The Lord said to Moses, “You shall offer up a cake of the first of your ground meal as a heave offering” (Num. 15:20). God wanted the firstfruits of the land to be set apart to honor Him.
The Lord also said, “I the Lord am holy, and have separated you from the peoples, that you should be mine” (Lev. 20:26). God took the nation of Israel and separated them from all other nations for His glory.
In each of these passages in the Septuagint (the Greek version of the Old Testament), the word refers to separation in the fullest sense. The apostle Paul knew that once he was called as an apostle, he would be disconnected from his past. When Paul was the most ardent of Pharisee, he was set apart for—or separated to—the traditions of the Jewish people (Phil. 3:5). Now he could claim to be a Pharisee separated to the gospel of God.
Are you separate from your former life?
MacArthur, J. (2001). Truth for today : a daily touch of God’s grace (p. 15). Nashville, Tenn.: J. Countryman.