Commenting on Exo 20:3//Deut 5:7, Andreas Wagner wrote:
In the Decalogue, for example, it says: Exod. 20.3/Deut. 5.7 You shall have no other gods before me. This phrase intends that God alone should be revered. It does not deny the existence of other gods and is thus not monotheistic. (Andreas Wagner, God's Body: The Anthropomorphic God in the Old Testament [trans. Marion Salzmann; London: T&T Clark, 2019], 143)
For more on the Bible and the "number of God," see:
