3 John 1: 5 - 8
5 Beloved, it is a loyal thing you do when you render any service to the brethren, especially to strangers,
6 who have testified to your love before the church. You will do well to send them on their journey as befits God's service.
7 For they have set out for his sake and have accepted nothing from the heathen.
8 So we ought to support such men, that we may be fellow workers in the truth.

EWTN