Charles Ellicott 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)

Incense from Sheba. —The land that had a proverbial fame both for gold and frankincense (Isaiah 60:6; Ezekiel 27:22), the thus Sabæum of Virgil, Aeneid 1.416-417. So Milton, Paradise Lost, Book 4—

“Sabæan odours from the spicy shores
Of Araby the blest.”

So the Queen of Sheba brought spices and gold (1 Kings 10:10).

The sweet cane. —Literally, the good cane, or, as in Exodus 30:23, sweet calamus (Song of Solomon 4:14), numbered among the ingredients of the Temple incense. The Septuagint renders it as “cinnamon.” It came from the “far country” of India. The whole passage is a reproduction of the thought of Isaiah 1:11-13.