Revelation 13:1

Some have interpreted this beast to be a certain power, a leader of the other demons, who is second to Satan, and that after this beast the antichrist arises from the earth. However, according to holy Methodius and holy Hippolytus and others this beast is …

And I saw a beast rising up out of the sea. The beast has various interpretations according to the locations. Here, it signifies the body of the devil arising from the people of the impious. This sea is understood to be the abyss mentioned above. …

Having seven heads and ten horns, etc. He shows that the seven heads are the same as the ten horns. For he had said that the dragon carried seven diadems on its seven heads; now he says the beast carries ten diadems on its ten …

And on its heads names of blasphemy. For they call their kings gods, both dead and supposedly translated to heaven among the gods, and also on earth as Augusti, which is a name of divinity as they will it. Elsewhere, he says the whole beast …

This beast is a spiritually secular power, opposite to the kingdom of Christ. A power not merely spiritual or ecclesiastical, nor merely secular or political but a mixture of both. He is a secular prince; for a crown, yea, and a kingdom are ascribed to him.

And I stood upon the sand of the sea - The sand upon the shore of the sea. That is, he seemed to stand there, and then had a vision of a beast rising out of the waters. The reason of this representation may, perhaps, have been that among the ancients the sea was regarded as the appropriate place for the origin of huge and terrible monsters (Prof. Stuart, in loco). This vision strongly resembles that in Dan 7:2 ff, where the prophet saw four beasts coming up in succession from the sea. See the notes on that place.

Hence, the world powers seeking their own glory, and not God's, are represented as beasts; and Nebuchadnezzar, when in self-deification he forgot that "the Most High ruleth in the kingdom of men," was driven among the beasts.

And I stood upon the sand of the sea, and saw a beast rise up out of the sea - Before we can proceed in the interpretation of this chapter, it will be highly necessary to ascertain the meaning of the prophetic symbol beast, as the want of a proper understanding of this term has probably been one reason why so many discordant hypotheses have been published to the world. In this investigation it is impossible to resort to a higher authority than Scripture, for the Holy Ghost is his own interpreter. What is therefore meant by the term beast in any one prophetic vision, the same species of thing must be represented by the term whenever it is used in a similar manner in any other part of the sacred oracles. Having therefore laid this foundation, the angel’s interpretation of the last of Daniel’s four beasts need only be produced, an account of which is given in the seventh chapter of this prophet. Daniel being very desirous to “know the truth of the fourth beast which was diverse from all the others, exceeding dreadful, and of the ten horns that were on his head,” the angel thus interprets the vision: “The fourth beast shall be the fourth kingdom upon earth, which shall be diverse from all kingdoms, and shall devour the whole earth, and shall tread it down, and break it in pieces. And the ten horns out of this kingdom are ten kings that shall arise,” etc. In this scripture it is plainly declared that the fourth beast should be the fourth kingdom upon earth; consequently, the four beasts seen by Daniel are four kingdoms: hence the term beast is the prophetic symbol for a kingdom. As to the nature of the kingdom which is represented by the term beast, we shall obtain no inconsiderable light in examining the most proper meaning of the original word חיה chaiyah. […]