The "Beast" of Rev. 13:1-10 is the Roman Catholic Church. This is proven by 21 
identification points in Rev. 13:1-10. This is also the little-horn power of Daniel.

The Roman Catholic Church was a UNION of church and state, with the church dominating the state and using the civil laws of the state to enforce her religious dogmas.

An Image is a likeness – a duplication.

Therefore, an image of the Roman Catholic Church will be formed in the United States when Protestants succeed in influencing the government to enforce Sunday observance by law – a national  Sunday law.

"In order for the United States to form an image in the likeness of the beast -  
Roman Catholicism -  the religious power must so control the civil government 
that the authority of the state will also be employed 
by the church to accomplish her own ends."

But what is the “image to the beast”? and how is it to be formed? The image is made by the two-horned beast, and is an image to the beast. It is also called an image of the beast. Then to learn what the image is like and how it is to be formed we must study the characteristics of the beast itself—the papacy.

When the early church became corrupted by departing from the simplicity of the gospel and accepting heathen rites and customs, she lost the Spirit and power of God; and in order to control the consciences of the people, she sought the support of the secular power. The result was the papacy, a church that controlled the power of the state and employed it to further her own ends, especially for the punishment of “heresy.” In order for the United States to form an image of the beast, the religious power must so control the civil government that the authority of the state will also be employed by the church to accomplish her own ends.

Whenever the church has obtained secular power, she has employed it to punish dissent from her doctrines. Protestant churches that have followed in the steps of Rome by forming alliance with worldly powers have manifested a similar desire to restrict liberty of conscience. An example of this is given in the long-continued persecution of dissenters by the Church of England. During the sixteenth and seventeenth centuries, thousands of nonconformist ministers were forced to flee from their churches, and many, both of pastors and people, were subjected to fine, imprisonment, torture, and martyrdom.

It was apostasy that led the early church to seek the aid of the civil government, and this prepared the way for the development of the papacy—the beast. Said Paul: “There” shall “come a falling away, … and that man of sin be

revealed.” 2 Thessalonians 2:3. So apostasy in the church will prepare the way for the image to the beast.

The Bible declares that before the coming of the Lord there will exist a state of religious declension similar to that in the first centuries. “In the last days perilous times shall come. For men shall be lovers of their own selves, covetous, boasters, proud, blasphemers, disobedient to parents, unthankful, unholy, without natural affection, truce-breakers, false accusers, incontinent, fierce, despisers of those that are good, traitors, heady, high-minded, lovers of pleasures more than lovers of God; having a form of godliness, but denying the power thereof.” 2 Timothy 3:1-5. “Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils.” 1 Timothy 4:1. Satan will work “with all power and signs and lying wonders, and with all deceivableness of unrighteousness.” And all that “received not the love of the truth, that they might be saved,” will be left to accept “strong delusion, that they should believe a lie.” 2 Thessalonians 2:9-11. When this state of ungodliness shall be reached, the same results will follow as in the first centuries.

"... In the very act of enforcing a religious duty by secular power, 
the churches would themselves form an image  to the beast."

…

"The image to the beast represents that form of apostated Protestantism 
which will be developed when the Protestant churches shall seek the 
aid of the civil powers for the enforcement of their dogmas."

When the leading churches of the United States, uniting upon such points of doctrine as are held by them in common, shall influence the state to enforce their decrees and to sustain their institutions, then Protestant America will have formed an image of the Roman hierarchy, and the infliction of civil penalties upon dissenters will inevitably result.

The beast with two horns “causeth [commands] all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads: and that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.” Revelation 13:16, 17. The third angel’s warning is: “If any man worship the beast and his image, and receive his mark in his forehead, or in his hand, the same shall drink of the wine of the wrath of God.” “The beast” mentioned in this message, whose worship is enforced by the two-horned beast, is the first, or leopardlike beast of Revelation 13—the papacy. The “image to the beast” represents that form of apostate Protestantism which will be developed when the Protestant churches shall seek the aid of the civil power for the enforcement of their dogmas. The “mark of the beast” still remains to be defined.

After the warning against the worship of the beast and his image the prophecy declares: “Here are they that keep the commandments of God, and the faith of Jesus.” Since those who keep God’s commandments are thus placed in contrast with those that worship the beast and his image and receive his mark, it follows that the keeping of God’s law, on the one hand, and its violation, on the other, will make the distinction between the worshipers of God and the worshipers of the beast.

"The enforcement of Sunday-keeping in the United States 
would be an enforcement of the worship of the beast and his image."

As the sign of the authority of the Catholic Church, papist writers cite “the very act of changing the Sabbath into Sunday, which Protestants allow of; … because by keeping Sunday, they acknowledge the church’s power to ordain feasts, and to command them under sin.”—Henry Tuberville, An Abridgment of the Christian Doctrine, page 58. What then is the change of the Sabbath, but the sign, or mark, of the authority of the Roman Church—“the mark of the beast”?

The Roman Church has not relinquished her claim to supremacy; and when the world and the Protestant churches accept a sabbath of her creating, while they reject the Bible Sabbath, they virtually admit this assumption. They may claim the authority of tradition and of the Fathers for the change; but in so doing they ignore the very principle which separates them from Rome—that “the Bible, and the Bible only, is the religion of Protestants.” The papist can see that they are deceiving themselves, willingly closing their eyes to the facts in the case. As the movement for Sunday enforcement gains favor, he rejoices, feeling assured that it will eventually bring the whole Protestant world under the banner of Rome.

Romanists declare that “the observance of Sunday by the Protestants is an homage they pay, in spite of themselves, to the authority of the [Catholic] Church.”—Mgr. Segur, Plain Talk About the Protestantism of Today, page 213. The enforcement of Sunday keeping on the part of Protestant churches is an enforcement of the worship of the papacy—of the beast. Those who, understanding the claims of the fourth commandment, choose to observe the false instead of the true Sabbath are thereby paying homage to that power by which alone it is commanded. But in the very act of enforcing a religious duty by secular power, the churches would themselves form an image to the beast; hence the enforcement of Sunday keeping in the United States would be an enforcement of the worship of the beast and his image.

"It has been shown that the United States is the power represented by the beast with 
lamb-like horns, and that this prophecy will be fulfilled when the United States  shall 
enforce Sunday observance, which Rome claims as the special acknowledgment of her supremacy."

The influence of Rome in the countries that once acknowledged her dominion is still far from being destroyed. And prophecy foretells a restoration of her power. “I saw one of his heads as it were wounded to death; and his deadly wound was healed: and all the world wondered after the beast.” Verse 3. The infliction of the deadly wound points to the downfall of the papacy in 1798. After this, says the prophet, “his deadly wound was healed: and all the world wondered after the beast.” Paul states plainly that the “man of sin” will continue until the second advent. 2 Thessalonians 2:3-8. To the very close of time he will carry forward the work of deception. And the revelator declares, also referring to the papacy: “All that dwell upon the earth shall worship him, whose names are not written in the book of life.” Revelation 13:8. In both the Old and the New World, the papacy will receive homage in the honor paid to the Sunday institution, that rests solely upon the authority of the Roman Church.

Since the middle of the nineteenth century, students of prophecy in the United States have presented this testimony to the world. In the events now taking place is seen a rapid advance toward the fulfillment of the prediction. With Protestant teachers there is the same claim of divine authority for Sunday-keeping, and the same lack of Scriptural evidence, as with the papal leaders who fabricated miracles to supply the place of a command from God. The assertion that God’s judgments are visited upon men for their violation of the Sunday-sabbath, will be repeated; already it is beginning to be urged. And a movement to enforce Sunday observance is fast gaining ground.