In 1 Samuel 6:19 a number of people are struck dead by God after looking into the ark of the LORD.
1 Samuel 6:19 (NIV)
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.
As is evident from the citation above, the NIV has a footnote on the number 70, noting that most of the manuscripts have 50,070 people rather 70. This is not a small difference. I notice the NET opts for 50,070 while the NIV prefers 70. Which was more likely the original number?