A people that provoketh me to anger continually to my face; that sacrificeth in gardens, and burneth incense upon altars of brick;
A people that provoketh me to anger continually - answering to "all the day" (Isaiah 65:2). God was continually inviting them, and they continually offending Him (Deuteronomy 32:21).
To my face. They made no attempt to hide their sin (Isaiah 3:9). Compare "before me," Exodus 20:3.
That sacrificeth in gardens - (note, Isaiah 1:29; Isaiah 66:17; Leviticus 17:5.)
And burneth incense upon altars of brick - Hebrew, bricks. God had commanded His altars to be of unhewn stone (Exodus 20:25). This was in order to separate them, even in external respects, from idolaters; also, as all chiseling was forbidden, they could not inscribe superstitious symbols on them, as the pagan did. Bricks were more easily so inscribed than stone: hence, their use for the cuneiform inscriptions at Babylon, and also for idolatrous altars. Some, not so well, have supposed that the "bricks" here mean the flat brick-paved roofs of houses on which they sacrificed to the sun, etc. (2 Kings 23:12; Jeremiah 19:13.)