Albert Barnes Commentary Jeremiah 6:20

"To what purpose cometh there to me frankincense from Sheba, and the sweet cane from a far country? your burnt-offerings are not acceptable, nor your sacrifices pleasing unto me." — Jeremiah 6:20 (ASV)

The sweet cane - This is the same as the scented cane of Exodus 30:23 (see the note).

Your burnt offerings - The rejection of ritual observances is proclaimed by the two prophets Isaiah and Jeremiah, who chiefly assisted the two pious kings, Hezekiah and Josiah, in restoring the temple-service. God rejects not the ceremonial service, but the substitution of it for personal holiness and morality. Compare 1 Samuel 15:22; Isaiah 1:11; Micah 6:6–8.