I agree. I respect the rights of Messianic Jews to believe in whatever they want, but I feel it is inappropriate for them to call themselves part of Judaism. Saying "Let's have Judaism, but with Jesus" is no different from saying, "Let's have Christianity, but with Donkey Kong instead of Jesus." My point is just that you can see how this could be construed as insulting. I'm not pointing the finger at any poster in particular or even at Handmark, since I'm not really familiar with this product. I'm not trying to insult anyone's beliefs. But I empathize with the frustration of some of the other posters.
I also agree that "Bible" is not an appropriate term for a Jewish Prayer Book - Sedur is a more common term (I don't know if that's the correct transliteration of the Hebrew name).
I don't know where else to put this, so I'll just include it here: I don't like having Santa in my posts whenever I instinctively type a smiley, i.e.

. I am not Christian, and I do not celebrate Christmas. Can I turn this off for my own posts?
This post was not intended to be offensive, and I hope it is not.