Revelation 17:9

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

Revelation 13:18

Here is wisdom. Let him that has understanding count the number of the beast: for it is the number of a man; and his number is six hundred three score and six.

Revelation 17:3

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

Daniel 12:4

But you, O Daniel, shut up the words, and seal the book, even to the time of the end: many shall run to and fro, and knowledge shall be increased.

Daniel 12:8-10

And I heard, but I understood not: then said I, O my Lord, what shall be the end of these things?

Hosea 14:9

Who is wise, and he shall understand these things? prudent, and he shall know them? for the ways of the LORD are right, and the just shall walk in them: but the transgressors shall stumble in them.

Matthew 13:11

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

Matthew 24:15

When you therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoever reads, let him understand:)

Revelation 13:1

And I stood upon the sand of the sea, and saw a beast rise up out of the sea, having seven heads and ten horns, and upon his horns ten crowns, and upon his heads the name of blasphemy.

Revelation 17:7

And the angel said unto me, Why did you marvel? I will tell you the mystery of the woman, and of the beast that carries her, which has the seven heads and ten horns.

Revelation 17:18

And the woman whom you saw is that great city, which reigns 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 has understanding count the number of the beast: for it is the number of a man; and his number is six hundred three score and six.
Daniel 12:4
But you, O Daniel, shut up the words, and seal the book, even to the time of the end: many shall run to and fro, and knowledge shall be increased.
Hosea 14:9
Who is wise, and he shall understand these things? prudent, and he shall know them? for the ways of the LORD are right, and the just shall walk in them: but the transgressors shall stumble in them.
Matthew 13:11
He answered and said unto them, Because it is given unto you to know the mysteries of the kingdom of heaven, but to them it is not given.
Matthew 24:15
When you therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoever reads, let him 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 scarlet colored 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 saw a beast rise up out of the sea, having seven heads and ten horns, and upon his horns ten crowns, and upon his heads the name of blasphemy.