The More You Do, the More You Will Receive

It’s a simple fact that Hashem rewards a person measure for measure, in accordance with his deeds. Hashem forgives those who forgive others, and one who does not want to forgo his own honor or is not capable of doing chessed, logically deserves to be treated strictly as well, without Hashem’s chessed (see Rosh Hashanah 17a and Megillah 28a). And who would survive if Hashem would deal with him only according to strict justice?! Dovid Hamelech asked, “Do not come in judgment with Your servant, for no living being will be found deserving before You.” On the other hand, a person who does chessed will receive chessed, and the more he does, the more he’ll receive.

(Mesillas Yesharim ch. 19)