John Gill 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)

To what purpose comes there to me incense from Sheba In Persia or Arabia, from where incense was brought, and perhaps the best; see (Isaiah 60:6) , and yet the offering of this was of no esteem with God, when the words of the prophet, and the law of his mouth, were despised; see (Isaiah 1:13) :

and the sweet cane from a far country ? either from the same place, Sheba, which was a country afar off, (Joel 3:8) , or from India, as Jerom interprets it; this was one of the spices in the anointing oil, (Exodus 30:23) and though this was of divine appointment, and an omission of it is complained of, (Isaiah 43:24) yet when this was brought with a hypocritical heart, and to atone for neglects of the moral law, and sins committed against that, it was rejected by the Lord:

your burnt, offerings are not acceptable, nor your sacrifices sweet unto me : being offered up with a wicked mind, and without faith in Christ, and in order to expiate the guilt of black crimes unrepented of, and continued in; they were not grateful to God, nor could he smell a sweet savour in them, but loathed and abhorred them; see (Isaiah 1:11) .