Albert Barnes Commentary Ezekiel 16:18

"and thou tookest thy broidered garments, and coveredst them, and didst set mine oil and mine incense before them." — Ezekiel 16:18 (ASV)

My oil and my incense - The oil was the produce of the land, the incense received in exchange for such produce. Both were the gifts of Yahweh and belonged to Him; yet the oil (Exodus 25:6; Exodus 29:40) and the incense (Exodus 30:34), prepared for the service of God, were used in idol-worship. In nature worship the worshippers were especially lavish in vegetable products like incense.