Abstract
We present a Reformed view on the relation between Christianity and non-Christian religions. We then explore what this view entails for the question whether Christians and non-Christian religious believers refer to, believe in, and worship the same God. We first analyze the concepts of worship, belief-in, and reference, as well as their interrelations. We then argue that adherents of the Abrahamic religions plausibly refer to the same God, whereas adherents of non-Abrahamic religions do not refer to this God. Nonetheless, it would be wrong to say that adherents of all Abrahamic religions believe in and worship the same God.