Genesis 24:18-19

24:18 “Drink, my lord,” she replied, and quickly lowering her jug to her hands, she gave him a drink. 24:19 When she had done so, she said, “I’ll draw water for your camels too, until they have drunk as much as they want.”

Matthew 10:42

10:42 And whoever gives only a cup of cold water to one of these little ones in the name of a disciple, I tell you the truth, he will never lose his reward.”

Matthew 25:35-40

25:35 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 invited me in, 25:36 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.’ 25:37 Then the righteous will answer him, ‘Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? 25:38 When did we see you a stranger and invite you in, or naked and clothe you? 25:39 When did we see you sick or in prison and visit you?’ 25:40 And the king will answer them, ‘I tell you the truth, just as you did it for one of the least of these brothers or sisters of mine, you did it for me.’

Hebrews 13:2

13:2 Do not neglect hospitality, because through it some have entertained angels without knowing it.