Exodus 23:18-20

King James Version

¹⁸ Thou shalt not offer the blood of my sacrifice with leavened bread; neither shall the fat of my sacrifice remain until the morning.

¹⁹ The first of the firstfruits of thy land thou shalt bring into the house of the Lord thy God. Thou shalt not seethe a kid in his mother's milk.

²⁰ Behold, I send an Angel before thee, to keep thee in the way, and to bring thee into the place which I have prepared.