How do you interpret this?
1 .... there are no other Gods
2 ..... there are other Gods, but you must not worship them
next question .... did the Israelites have several Gods at some time?
before they became monotheists?
I wonder about this
Up until the beginning of Isaiah, or the first Isaiah, YHWH was Israel's god and greater than all other gods. For the second Isaiah, or the Isaiah of Babylon, only one god exists, that being God, the rest being figments of the imagination. "Is there a God besides me? There is no Rock; I know not any" (44:8). Israel had finally reached the peak of its monotheism.
However, the nation would never divest itself of its idolatry. Hosea denounced her stubborn idolatry (2:16; 8:4-6; 13:2). 2 Kings 17:7-18 is an indictment against Israel for building high places and pillars, serving idols, burning her children as offerings, and general disobedience. Hence her destruction in 722 BC.
They practiced idol worship up until their destruction. Paul iterated this ancestral habit of theirs to the people of Athens (
Acts 17:30). He also summarized his forebears thus to his brethren in Rome:
For although they knew God, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. Claiming to be wise, they became fools, and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and creeping things. (Rom 1:21-23)