Revelation 17:5 KJV
And upon her forehead was a name written, MYSTERY, BABYLON THE GREAT, THE MOTHER OF HARLOTS AND ABOMINATIONS OF THE EARTH .
The mother of harlots and the abominations of the earth is Babylon the Great. She's depicted as a woman because a woman in the bible is a church. Paul says the same in Galatians 4:26 KJV But Jerusalem which is above is free, which is the mother of us all. The true church is led of the Spirit. So Babylon has children called harlots i.e. daughters or churches who preach her blasphemous and abominable doctrines. These are churches who belong to the ecumenical movement and who have accepted the Pope as their head and spiritual leaders. We know that Roman Catholicism like all pagan religions, the worship of idols and devils is the reality of its faith. The majority are fooled by the veneer of Christian rhetoric which in essence undermines the Lord Jesus Christ. Daniel 8:12 KJV And an host was given him against the daily sacrifice by reason of transgression, and it cast down the truth to the ground; and it practised, and prospered.
To make sense of this, one only needs to read the blasphemous quotes by the popes in their successions over the years to this very day. Every baby is born of a mother and it's the mother's milk that nourishes it.
1 Peter 2:2 KJV As newborn babes, desire the sincere milk of the word, that ye may grow thereby:
The Gospel of Jesus Christ is 'sincere' which means it's true but a baby can be stolen and the offending mother can still raise the baby because babies are helpless. However, babies grow up and begin to dig and sooner or later they find their feet to the real mother. Hence we read
Revelation 18:4 KJV
And I heard another voice from heaven, saying, Come out of her, my people, that ye be not partakers of her sins, and that ye receive not of her plagues.
Psalm 97:7 KJV
Confounded be all they that serve graven images, that boast themselves of idols: worship him, all ye gods.