ref = BibleRef::Reference.new('jn 3:16')
# #<BibleRef::Reference:0x000001020f7000 @reference="jn 3:16", @details={:book=>"jn", :refs=>{:chapter=>3, :verse=>16}}>
ref.valid?
# true
ref.book_id
# "JHN"
ref.normalize
# "John 3:16"

BibleRef::Reference.new('john 3:16').ranges
# [
#   [{ book: 'JHN', chapter: 3, verse: 16 },
#    { book: 'JHN', chapter: 3, verse: 16 }]
# ]
BibleRef::Reference.new('Romans 12:1,3-4 & 13:2-4,7-8').ranges
# [
#   [{ book: 'ROM', chapter: 12, verse: 1 },
#    { book: 'ROM', chapter: 12, verse: 1 }],
#   [{ book: 'ROM', chapter: 12, verse: 3 },
#    { book: 'ROM', chapter: 12, verse: 4 }],
#   [{ book: 'ROM', chapter: 13, verse: 2 },
#    { book: 'ROM', chapter: 13, verse: 4 }],
#   [{ book: 'ROM', chapter: 13, verse: 7 },
#    { book: 'ROM', chapter: 13, verse: 8 }]
# ]

verses = ranges.map do |from_ref, to_ref|
  first = DB['select id from verses where book = :book and chapter = :chapter and verse = :verse limit 1', from_ref].first
  last  = DB['select id from verses where book = :book and chapter = :chapter and verse = :verse limit 1', to_ref].first
  DB['select * from verses where id between ? and ?', first['id'], last['id']]
end

BibleRef::Reference.new('jude 1').ranges
# [
#   [{ book: 'JUD', chapter: 1, verse: 1 },
#    { book: 'JUD', chapter: 1, verse: 1 }]
# ]
BibleRef::Reference.new('jude 1', single_chapter_book_matching: :indifferent).ranges
# [
#   [{ book: 'JUD', chapter: 1 },
#    { book: 'JUD', chapter: 1 }]
# ]