By this one Word shall the diverse sects of the world attain unto the light of real union; verily the Truth He speaketh, and to the Path He leadeth, and He is the Mighty, the Gracious, the Beauteous.
'Abdu'l-Baha says:-- All must abandon prejudices and must even go to each other's churches and mosques, for, in all of these worshipping places, the Name of God is mentioned.

Since all gather to worship God, what difference is there?
None of them worship Satan.

The Muhammadans must go to the churches of the Christians and the Synagogues of the Jews, and vice versa, the others must go to the Muhammadan Mosques.

They hold aloof from one another merely because of unfounded prejudices and dogmas.

In America I went to the Jewish Synagogues, which are similar to the Christian Churches, and I saw them worshipping God everywhere.
In many of these places I spoke about the original foundations of the divine religions, and I explained to them the proofs of the validity of the divine prophets and of the Holy Manifestations.