incense. frankincense. Put by Figure of speech Synecdoche (of the Part), App-6, ror the whole incense of which it was an ingredient.
Sheba. In the south of Arabia.
not acceptable. Compare Isaiah 1:11-15.
Related Commentaries of Jeremiah 6:20
Jeremiah 6:20
20 To what purpose cometh there to me incense from Sheba, and the sweet cane from a far country? your burnt offerings are not acceptable, nor your sacrifices sweet unto me.