עַשֵּׂ֣ר תְּעַשֵּׂ֔ר אֵ֖ת כָּל־תְּבוּאַ֣ת זַרְעֶ֑ךָ הַיֹּצֵ֥א הַשָּׂדֶ֖ה שָׁנָ֥ה שָׁנָֽה׃
Thou shalt surely tithe all the increase of thy seed, that which is brought forth in the field year by year.
Pirkei Avot
Rabbi Akiva said: Merriment and frivolity accustom one to sexual licentiousness; Tradition is a fence to the Torah; Tithes a fence to wealth, Vows a fence to abstinence; A fence to wisdom is silence.