At that time, John said to Jesus,
“Teacher, we saw someone driving out demons in your name,
and we tried to prevent him because he does not follow us.”
Jesus replied, “Do not prevent him.
There is no one who performs a mighty deed in my name
who can at the same time speak ill of me.
For whoever is not against us is for us.
Anyone who gives you a cup of water to drink
because you belong to Christ,
amen, I say to you, will surely not lose his reward.”
—Mark 9:38-43

Would that all God's own were prophets
burning with the Spirit's flame,
every son and every daughter
given courage to proclaim!
Yet a greater gift is offered,
first and last and all may claim:
Offering a cup of water
to the thirsty, in Christ's name.

All the good things we have treasured
we are given from God's hand;
all the joys of rest and pleasure,
all the gifts of sun and land.
None, though, can we hold forever,
having but to give again.
Breaking heaven's bread together:
We are more than prophets then.

We are mortal; we are sinful,
yet such gifts we have received,
how can we be else than gen'rous
with God's generosity?
Word of God, come dwell within us;
form and shape all we shall be.
Let the love that you have giv'n us
echo in our every deed.

Bernardo Strozzi – An act of mercy, giving drink to the thirsty- http://emuseum.ringling.org/emuseum/objects/18885/an-act-of-mercy-giving-drink-to-the-thirsty?ctx=554eb923-d6df-4234-82e9-e439b2d967fe&idx=1, Public Domain, https://commons.wikimedia.org/w/index.php?curid=66957640