Let's go back over this...and look at 'this people'

The people already received knowledge of what God expected of them before Moses left them to go up the mountain and get the tables of stone...
And they

to obey what God expected of them...
Who they obey seems to determine who is their Lord and God leading them...

otherwise you are disowned and nobody wants to call you their people! When you are disowned you become a burden and thing being past back and forth between those in authority over you, and these are behind the scene going " they are yours not mind!"

sounds like me and 'H'

when one of the kids gets into a mess, I am prone to say "Look what YOUR child has done went and done! and he says, "that is NOT my child, but YOURS!