Albert Barnes Commentary Leviticus 5:15

"If any one commit a trespass, and sin unwittingly, in the holy things of Jehovah; then he shall bring his trespass-offering unto Jehovah, a ram without blemish out of the flock, according to thy estimation in silver by shekels, after the shekel of the sanctuary, for a trespass-offering:" — Leviticus 5:15 (ASV)

Commit a trespass - Rather, here and in Leviticus 6:2, perpetrate a wrong. The word is different from that rendered trespass elsewhere in these chapters.

Through ignorance - Through inadvertence. See Leviticus 4:2 note.

In the holy things of the Lord - The reference is to a failure in the payment of firstfruits, tithes, or fees of any kind connected with the public service of religion by which the sanctuary suffered loss; compare Numbers 5:6-8.

Shekel of the sanctuary - See Exodus 38:24 note.