The Samaritan inserts the first ten verses of this chapter after Exodus 26:32.
an altar: Exodus 30:7-8, Exodus 30:10, Exodus 37:25-28, Exodus 40:5; Leviticus 4:7, Leviticus 4:18; 1 Kings 6:20; 2 Chronicles 26:16; Revelation 8:3
to burn incense: Where so many sacrifices were offered, it was essentially necessary to have some pleasing perfume to counteract the disagreeable smells that must have arisen from the slaughter of so many animals, the burning of so much flesh, the sprinkling of the blood. No blood was ever sprinkled on this altar, except once a year, on the grand day of expiation. It was called also the golden altar (Numbers 4:11); and the incense was as constantly burnt on it every day, as the morning and evening sacrifice of a lamb was burnt on the brazen altar.