Talmud for Pirkei Avot 5:11
אַרְבַּע מִדּוֹת בַּדֵּעוֹת. נוֹחַ לִכְעֹס וְנוֹחַ לִרְצוֹת, יָצָא שְׂכָרוֹ בְהֶפְסֵדוֹ. קָשֶׁה לִכְעֹס וְקָשֶׁה לִרְצוֹת, יָצָא הֶפְסֵדוֹ בִשְׂכָרוֹ. קָשֶׁה לִכְעֹס וְנוֹחַ לִרְצוֹת, חָסִיד. נוֹחַ לִכְעֹס וְקָשֶׁה לִרְצוֹת, רָשָׁע:
There are four middoth in deoth (temperaments): easily angered and easily pacified — his gain is negated by his loss; angered with difficulty and pacified with difficulty — his loss is negated by his gain. [If one is quickly angered by all things, even though he is easily appeased, his loss is more than his gain. For most of his acts are defective in that he is easily angered over everything. But if one is angered with difficulty, even though he has the evil middah of being pacified with difficulty, his (relatively) small loss, being pacified with difficulty, is negated by his (relatively) greater gain, being angered with difficulty, so that most of his acts are praiseworthy. Some versions are the opposite of this; but this seems to be the correct version.]; angered with difficulty and easily pacified — a chasid; easily angered and pacified with difficulty — a wicked one.
Avot D'Rabbi Natan
When some tithe and some do not, famine comes because of drought. When some donate to the priesthood and some do not, famine comes because of chaos. When some separate the dough offering [challah] and some do not, famine comes because of devastation. When no one tithes, they stop up the heavens from giving dew and rain, and people toil and toil and never have enough. Rabbi Yoshia said: For the sin of not separating the dough offering, fruit are not blessed, and people toil and toil and never have enough. (For the sin of not donating to the priesthood or tithing, the heavens are stopped up, and do not give any dew or rain, and the people are given over to the hands of their enemies.)