Deuteronomy 22:9-12 - Illustrations Of The Principle Of Purity
9 You shall not sow your vineyard with different seeds: lest the fruit of your seed which you have sown, and the fruit of your vineyard, be defiled. 10 You shall not plow with an ox and a donkey together. 11 You shall not wear a garment of different sorts, as of woolen and linen together. 12 You shall make tassels upon the four corners of your cloak, with which you cover yourself.