20. Literally, "To what purpose is this to Me, that incense cometh to Me?"
incense … cane—(Isa 43:24; 60:6). No external services are accepted by God without obedience of the heart and life (Jer 7:21; Ps 50:7-9; Isa 1:11; Mic 6:6, &c.).
sweet … sweet—antithesis. Your sweet cane is not sweet to Me. The calamus.