The first of the firstfruits of your land you shall bring into the house of the LORD your God. You shall not boil a young goat in its mother's milk.
Exodus 23:19
Surrounding context
23:18 "You shall not offer the blood of My sacrifice with leavened bread; nor shall the fat of My sacrifice remain until morning.
23:19 The first of the firstfruits of your land you shall bring into the house of the LORD your God. You shall not boil a young goat in its mother's milk.
23:20 "Behold, I send an Angel before you to keep you in the way and to bring you into the place which I have prepared.