הָעָ֗ם הַמַּכְעִיסִ֥ים אוֹתִ֛י עַל־פָּנַ֖י תָּמִ֑יד זֹֽבְחִים֙ בַּגַּנּ֔וֹת וּֽמְקַטְּרִ֖ים עַל־הַלְּבֵנִֽים׃
A people that provoke Me to My face continually, that sacrifice in gardens, and burn incense upon bricks;
Rashi on Isaiah
those who sacrifice in gardens They erect idols in their gardens, and there they burn incense on the bricks.
Ibn Ezra on Isaiah
To my face. Like a servant that provokes his master while in his presence.