Exodus

²²And thou shalt observe the feast of weeks, even of the firstfruits of wheat harvest, and the feast of ingathering at the year's end. ²³Three times in the year shall all thy males appear before the Lord GOD the God of Israel. ²⁴For I will cast out nations before thee, and enlarge thy borders: neither shall any man desire thy land, when thou goest up to appear before the Lord thy God three times in the year. ²⁵Thou shalt not offer the blood of my sacrifice with leavened bread; neither shall the sacrifice of the feast of the passover be left unto the morning. ²⁶The first of the firstfruits of thy ground thou shalt bring unto the house of the Lord thy God. Thou shalt not seethe a kid in its mother's milk. ²⁷And the Lord said unto Moses, Write thou these words: for after the tenor of these words I have made a covenant with thee and with Israel. ²⁸And he was there with the Lord forty days and forty nights; he did neither eat bread, nor drink water. And he wrote upon the tables the words of the covenant, the ten commandments.