What happened to 70 Israelites of Beth Shemesh who dared look into the ark?

ANSWER

they were put to death by God

1st Samuel 6 :

19 But God struck down some of the inhabitants of Beth Shemesh, putting seventy[a] of them to death because they looked into the ark of the LORD. The people mourned because of the heavy blow the LORD had dealt them. 20 And the people of Beth Shemesh asked, “Who can stand in the presence of the LORD, this holy God? To whom will the ark go up from here?”
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