We come across people and we wonder who they are, and they wonder who we are.
We can be overly familiar thinking they know us, and we know them, and we can get ourselves into trouble sometimes. There may not necessarily be a spark of friendship there, so we must be careful with how we deal with other people.
1 Peter 2:9
9 But you are a chosen race, a royal priesthood, a holy nation, a people for God’s own possession, so that you may proclaim the excellencies of Him who has called you out of darkness into His marvelous light;