Charles Ellicott Commentary Exodus 34:26

"The first of the first-fruits of thy ground thou shalt bring unto the house of Jehovah thy God. Thou shalt not boil a kid in its mother`s milk." — Exodus 34:26 (ASV)

The first of the firstfruits. Compare to Exodus 23:19.

Thou shalt not seethe a kid. See Note 3 on Exodus 23:19.