BUT I THOUGHT I WAS A CHRISTIAN

3 Jn 5-6

5 Beloved, it is a fine and faithful work that you are doing when you give any service to the [Christian] brethren, and [especially when they are] strangers.

6 They have testified before the church of your love and friendship. You will do well to forward them on their journey [and you will please do so] in a way worthy of God's [service].
AMP