Then the king will say to those at his right hand, ‘Come, you who are blessed by my Father, inherit the kingdom prepared for you from the foundation of the world, for I was hungry and you gave me food, I was thirsty and you gave me something to drink, I was a stranger and you welcomed me, I was naked and you gave me clothing, I was sick and you took care of me, I was in prison and you visited me.’ Then the righteous will answer him, ‘Lord, when was it that we saw you hungry and gave you food or thirsty and gave you something to drink? And when was it that we saw you a stranger and welcomed you or naked and gave you clothing? And when was it that we saw you sick or in prison and visited you?’ And the king will answer them, ‘Truly I tell you, just as you did it to one of the least of these brothers and sisters of mine, you did it to me.’ 

Matthew 25:34-40