“The Lord, unto Whom all hearts are open, knowing our avarice and trivial, covetous calculation in those cases, when we have to show hospitality and kindness to people, from whom we do not expect to receive the equivalent,—has promised to remunerate us in the day of judgment, not only for having given food to the hungry, drink to the thirsty, for having visited the sick and those in prison, but He has promised a reward even for a cup of cold water, given to a Christian or to an unbeliever in His name.”

(St John of Kronstadt ‘My Life in Christ’)