There shall no strange god be in thee; neither shalt thou worship any strange god.
No strange god was to be allowed to remain among God's people. No foreign god was to be worshiped. The prohibition belongs to the explanation that Israel was scattered because they forgot God. That forgetting included turning away from Him to other gods, which the warning against strange gods makes plain. The same forgetting that scattered Israel endangers churches today, and the warning applies to churches now forgetting God in the same way.
No strange god was to be allowed to remain among God's people. No foreign god was to be worshiped. The prohibition belongs to the explanation that Israel was scattered because they forgot God. That forgetting included turning away from Him to other gods, which the warning against strange gods makes plain. The same forgetting that scattered Israel endangers churches today, and the warning applies to churches now forgetting God in the same way.