Matthew 10:40-42

40 "He who receives you receives me, and he who receives me receives him who sent me.

41 He who receives a prophet because he is a prophet shall receive a prophet's reward, and he who receives a righteous man because he is a righteous man shall receive a righteous man's reward.

42 And whoever gives to one of these little ones even a cup of cold water because he is a disciple, truly, I say to you, he shall not lose his reward."