Philippians 1:1 - "...To all the saints in Christ Jesus at Philippi..."
Paul addresses his letter to the Philippians as "to all the saints". What is a saint and who is a saint?
The Bible Knowledge Commentary states ... "By calling the Philippian believers saints, Paul was not saying his readers were sinless. The Greek word he used, hagioi, means "those set apart." The saints at Philippi were set apart for God. They were in Christ Jesus so far as their relationship to God was concerned." A "saint" is someone who is "set apart" because of a relationship with Jesus. And since all follower of Jesus are "set apart", all followers of Jesus are "saints". Yes, if you are a follower of Jesus, you are a "saint".
This raises the question ... Set apart from what and for what?
As a follower of Jesus, you are set apart for the purposes and plan of God. You are different (positively different) than those who are not follower of Jesus. Your thought process, your world view, your lifestyle, your vocabulary, your values, your hopes and dreams - are all different or "set apart" from those of someone who is not a follower of Jesus. Your purpose is to obey God and pursue His purpose and plan. His purpose and plan of seeking and saving the lost. His purpose and plan of building His Church. His purpose and plan of extending grace and mercy to all mankind. His purpose and plan of loving and serving and helping those in need and getting beat up by life. I am to be a living example of His abundant life.
So, go look in the mirror and say, "I am a saint." But more importantly think about your life. Does it reflect a life "set apart" from the world, "set apart" from those who do not have a relationship with Jesus. How is it "set apart"? How is your thought process, your world view, your lifestyle, your vocabulary, your values, your hopes and dreams - how are they "set apart"? Do others look at you and say you just like everyone else - or are you different - positively different - "set apart"?