Exodus 34:26 in the World English Bible
“You shall bring the first of the first fruits of your ground to the house of the LORD your God. “You shall not boil a young goat in its mother’s milk.”
Context
25 Thou shalt not offer the blood of my sacrifice with leaven; neither shall the sacrifice of the feast of the passover be left unto the morning.
26 The first of the firstfruits of thy land thou shalt bring unto the house of the LORD thy God. Thou shalt not seethe a kid in his mother’s milk.
27 And 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.