“Do not doubt whether to give, nor grumble while giving. For you should recognize the good paymaster of the reward. Do not shun a person in need, but share all things with your brother and do not say that anything is your own. For if you are partners in what is immortal, how much more in what is mortal?”
Didache, is an early Christian work a.k.a. “The Teaching of the Twelve Apostles” that was viewed as canon by some thus it is included in the Apostolic Fathers. (late first or early second century). This excerpt is from section 4.7-8.