1 Kings 12:30

And this thing became a sin Being in contradiction of the second commandment.

for the people wentto worship before the one, even unto Dan It appears as though by these words it was intended to shew how fully the people were led astray. To far-off Dan even did they go. This had been associated with worship aforetime, though it was idolatrous. Judges 18:30. There was no need to point out that they went to Bethel. That had been a place of worship before, and in consequence had sacred associations. Of course they were not hard to persuade to go there. But Jeroboam's device was successful in respect of the other shrine also.

The LXX. adds to this verse -and they neglected the house of the Lord."