For those who are unaware, this phrase is a codeword for Islamic supremacy. Islam of course has nothing whatsoever to do with Abraham, but conveniently molests his corpse in the name of a spurious moslem ascendancy. The full phrase, as used by moslem termites, is "the three Abrahamic faiths, led by Islam."
Probably this is well known to the turd from the national cathedral who is happily undermining Christianity for the sake of his islamic masters.
Allow me to humbly suggest that same is blinded by his/her ideology and unaware of the consequences...