Read Matthew 10:40-42
40 “Whoever welcomes you welcomes me; and whoever welcomes me welcomes the one who sent me. 41Whoever welcomes God’s messenger because he is God’s messenger, will share in his reward. And whoever welcomes a good man because he is good, will share in his reward. 42You can be sure that whoever gives even a drink of cold water to one of the least of these my followers because he is my follower, will certainly receive a reward.”
In Matthew 10:11-14 Jesus sends his disciples out and instructs them to stay wherever they are welcomed; in 40-42 he describes the reward for welcoming the disciples. The reward is life in Jesus name.