Exodus 34:26-28 American Standard Version (ASV)
26 The first of the first-fruits of thy ground thou shalt bring unto the house of Jehovah thy God. Thou shalt not boil a kid in its mother’s milk. 27 And Jehovah said unto Moses, Write thou these words: for after the tenor of these words I have made a covenant with thee and with Israel. 28 And he was there with Jehovah 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 [a]commandments.