Exodus 23:19

¹⁷  Three items in the year all thy males shall appear before the LORD God.

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.

²¹  Beware of him, and obey his voice, provoke him not; for he will not pardon your transgressions: for my name is in him.