3 John 1:8 We ought therefore to show hospitality to such people so that we may work together for the truth.
How do you treat people you don’t know? How many Christians have you unknowingly offended by saying the wrong stuff?
If we don’t know people, we don’t know if they are Christians or not! How do we know which ones to encourage or introduce God to?
The simple answer is to do what Jesus has taught us and to love one another – this way you will always include people in what you are doing for God and they can include you in what they do for Him!