This trend of syncretic assimilation is theorized by Mark S. Smith to have continued for many generations, with Ba'al and Asherah eventually merging with Yahweh as well, and their qualities and stories being ascribed to Yahweh instead, such as Ba'al's identification as a storm god. He also proposes that beginning after the 9th century BCE, Yahweh (having already assimilated several ancient Canaanite deities) began to develop some idiosyncratic qualities, as a result of having been conflated with some Canaanite gods, while simultaneously being distinguished from and described in opposition to other remnants of the Canaanite faith. Some of the earliest injunctions and admonitions in the Hebrew Bible are commandments to abstain from certain ancient Canaanite practices, such as worship of Ba'al and Asherah, child sacrifice as associated with Moloch and Ba'al, worship of the sun and moon, and cults of "high places." This has been argued to mark the transition from monolatry to monotheism, since this is when the idea of "idolatry" began to emerge and encompass all forms of Canaanite worship except those associated with Yahweh.