You would say this even though you were making a prayer to a group of people which had Jews in addition to Christians?
I try to be tollerant of other religions...however if asked to pray, I will pray as my Lord commands, and if that is offensive to others, well, they're offended by Jesus, not me.
I'm just following my faith, according to the commands of Jesus.
If I were in a Moslem country, and breaks were made in community or business meetings, in order to pray to Allah (where they always say Mohammed is His prophet--something as a Christian I 'm sure is wrong) would I be offended? OF COURSE NOT...SINCE THESE PEOPLE ARE MOSLEMS AND THAT'S A PART OF THEIR RELIGION.
By the same token, Jews should not be offended by Christians, praying AS CHRISTIANS. Christ is a part of our identity... I'll never be an Xtian!
Tollerance is a two way street and if you live in a place where a large number of people claim a particular religion, you better not be offended by it, or else you're going to live a pretty unhappy life.