Revelation 17:9

Here is the mind that hath wisdom. The seven heads are seven mountains, on which the woman sitteth.

Revelation 13:18

Here is wisdom. Let him that hath understanding count the number of the beast; for it is the number of a man, and his number is six hundred and sixtysix.

Revelation 17:3

So he carried me away in the Spirit into the wilderness. And I saw a woman sitting upon a scarletcolored beast, full of names of blasphemy, having seven heads and ten horns.

Matthew 13:11

He answered and said, Because to you it hath been given to know the mysteries of the kingdom of heaven; but to them it hath not been given.

Matthew 24:15

When, therefore, ye see the abomination of desolation, spoken of through Daniel the prophet, standing in the holy place, (let him that readeth understand,)

Revelation 13:1

And I stood upon the sand of the sea. And I saw a beast coming up out of the sea, having ten horns and seven heads, and upon his horns ten diadems, and upon his heads names of blasphemy.

Revelation 17:7

And the angel said to me, Wherefore didst thou wonder? I will tell thee the mystery of the woman, and of the beast that carrieth her, which hath the seven heads, and the ten horns.

Revelation 17:18

And the woman which thou sawest is the great city, which reigneth over the kings of the earth.

Treasury of Scripture Knowledge

Summary

And here is the mind which hath wisdom. The seven heads are seven mountains, on which the woman sitteth.

Bible References

Here

Revelation 13:18
Here is wisdom. Let him that hath understanding count the number of the beast; for it is the number of a man, and his number is six hundred and sixtysix.
Matthew 13:11
He answered and said, Because to you it hath been given to know the mysteries of the kingdom of heaven; but to them it hath not been given.
Matthew 24:15
When, therefore, ye see the abomination of desolation, spoken of through Daniel the prophet, standing in the holy place, (let him that readeth understand,)

The seven

Revelation 17:3
So he carried me away in the Spirit into the wilderness. And I saw a woman sitting upon a scarletcolored beast, full of names of blasphemy, having seven heads and ten horns.
Revelation 13:1
And I stood upon the sand of the sea. And I saw a beast coming up out of the sea, having ten horns and seven heads, and upon his horns ten diadems, and upon his heads names of blasphemy.