John Gill Commentary Leviticus 27:34

"These are the commandments, which Jehovah commanded Moses for the children of Israel in mount Sinai." — Leviticus 27:34 (ASV)

These are the commandments which the Lord commanded Moses ,
&c.] Meaning either what are contained in this chapter, or rather in the whole book, which he delivered to Moses:

for the children of Israel ;
to be observed by them, priests and people: and these were given to him

in Mount Sinai ;
either when upon it, or rather when near it, in the wilderness of it, after the tabernacle was set up, and the Lord spoke to him out of that; see (Leviticus 1:1) (25:1) .