Historic Judaism and Christianity are passionately committed to monotheism, affirming one God. However, Christianity understands the Trinity as a doctrine of tri-unity, emphasizing unity and oneness of God. Muslim theologians argue that the Trinity is irrational and contradictory, but Christian theologians distinguish between paradox, mystery, and contradiction, explaining that the Trinity is neither irrational nor nonsensical, nor is it contradictory.
[... more]