Exodus 23:19-21

Young's Literal Translation

¹⁹ the beginning of the first-fruits of thy ground thou dost bring into the house of Jehovah thy God; thou dost not boil a kid in its mother's milk.

²⁰ `Lo, I am sending a messenger before thee to keep thee in the way, and to bring thee in unto the place which I have prepared;

²¹ be watchful because of his presence, and hearken to his voice, rebel not against him, for he beareth not with your transgression, for My name [is] in his heart;