If you're married and you have a wife and you really love your wife is it good enough to only say to your wife 'I love her' the day you get married? Or should you tell her every single day when you wake up and every opportunity? And that's how I feel about my relationship with Jesus Christ is that it is the most important thing in my life.
Jews have a special relationship to books and the Haggadah has been translated more widely and reprinted more often than any other Jewish book. It is not a work of history or philosophy not a prayer book user's manual timeline poem or palimpsest - and yet it is all these things.