Revelation 12:3

And another sign was seen in the heaven; and, behold, a great red dragon, having seven heads and ten horns, and upon his heads seven diadems.

Revelation 13:1

(12:18) and he stood upon the sand of the sea. (13:1) And I saw a beast coming up out of the sea, having ten horns and seven heads, and on his horns ten diadems, and upon his heads names of blasphemy.

Revelation 17:12

And the ten horns which you saw are ten kings, who, indeed, received no kingdom as yet; but they receive authority as kings, one hour with the beast.

Treasury of Scripture Knowledge

Summary

And whereas thou sawest the feet and toes, part of potters' clay, and part of iron, the kingdom shall be divided; but there shall be in it of the strength of the iron, forasmuch as thou sawest the iron mixed with miry clay.

Bible References

The feet

Revelation 12:3
And another sign was seen in the heaven; and, behold, a great red dragon, having seven heads and ten horns, and upon his heads seven diadems.
Revelation 13:1
(12:18) and he stood upon the sand of the sea. (13:1) And I saw a beast coming up out of the sea, having ten horns and seven heads, and on his horns ten diadems, and upon his heads names of blasphemy.
Revelation 17:12
And the ten horns which you saw are ten kings, who, indeed, received no kingdom as yet; but they receive authority as kings, one hour with the beast.