Matthew 10:42

and whoever shall give only a cup of cold water to the meanest of you, considering him as my disciple, shall most assuredly be far from losing his reward.

Treasury of Scripture Knowledge

Summary

And it was told king David, saying, The LORD hath blessed the house of Obededom, and all that pertaineth unto him, because of the ark of God. So David went and brought up the ark of God from the house of Obededom into the city of David with gladness.

Because

Bible References

Because

Matthew 10:42
and whoever shall give only a cup of cold water to the meanest of you, considering him as my disciple, shall most assuredly be far from losing his reward.