Numbers 33:55 If you don’t force out all the people there,
they will be like pointed sticks in your eyes and thorns in
your back. They will always be trouble for you, 56 and I
will treat you as cruelly as I planned on treating them.
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The last statement from your God was giving you a warning
that unless you did a complete expulsion of the indigenous
population that your God was going to get very angry with
you and he was going to unleash his anger at you! So as a
Jew, you are obligated to get rid of the indigenous
population, are you not?