King James Version (KJV)
And this thing became a sin: for the people went {to worship} before the one, {even} unto Dan.
Modern English
This thing became a sin; for the people went even as far as Dan to worship before the one there.
Hebrew
וַיְהִ֛י הַדָּבָ֥ר הַזֶּ֖ה לְחַטָּ֑את וַיֵּלְכ֥וּ הָעָ֛ם לִפְנֵ֥י הָאֶחָ֖ד עַד־דָּֽן׃
vayhiy hadabar hazeh lḥaṭaʾt vayelkv haʿam lipney haʾeḥad ʿad-dan