You need to know for sure what the mark of the beast is to not take it. What it boils down to is obedience or disobedience.
Are you really willing and want to be obedient to God? The answer better be, yes, yes.
How can we know what is the mark of the beast. We know God marks His own with a mark that only the angels see, same as the evil ones can see Christ is dwelling in you the hope of Glory and they know they can’t touch you. The only day of the week made Holy and sanctified is the Sabbath, means seventh. Keeping the Sabbath is an acknowledgement of obedience and that we know He is the Lord that will cleanse us from our sins. It is a sign to Him that we desire to please Him and do His will by not desecrating the Sabbath by polluting it or out doing our pleasure or work and our own words. It is the day we are to come and honor Him and praise Him. The day is one Seventh of our time to be with Him and rest from our work and to be filled with His Spirit dwelling with Him in His Word, not ours.
Isa 58:13 ¶ If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the LORD, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words:
Ex 31:13 Speak thou also unto the children of Israel, saying, Verily my sabbaths ye shall keep: for it is a sign between me and you throughout your generations; that ye may know that I am the LORD that doth sanctify you.
Hebrew Dictionary for sign. - 'owth oth
probably from 225 (in the sense of appearing); a signal (literally or figuratively), as a flag, beacon, monument, omen, prodigy, evidence, etc.:--mark, miracle, (en-)sign, token.
Right from the beginning God marked His true ones who kept the Sabbath Holy and the same today for God does not change. Here you see God’s mark, now what is the Beast’s mark?
I believe it easy to determine the beast that is the one to be looking at to find his mark.
Re 12:9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.
Re 13:11 ¶ And I beheld another beast coming up out of the earth; and he had two horns like a lamb, and he spake as a dragon.
Re 13:12 And he exerciseth all the power of the first beast before him, and causeth the earth and them which dwell therein to worship the first beast, whose deadly wound was healed.
Re 13:13 And he doeth great wonders, so that he maketh fire come down from heaven on the earth in the sight of men, ( To the wonderment of men he does miracles as above to prove he is god )
Re 17:8 The beast that thou sawest was, and is not; and shall ascend out of the bottomless pit, and go into perdition: and they that dwell on the earth shall wonder, whose names were not written in the book of life from the foundation of the world, when they behold the beast that was, and is not, and yet is.
He has had to stay hidden out of sight and so at present “is not” and when he is allowed as 13:11 states he will not be hidden no more but comes as a glorious being claiming to be Christ. Yes in great wonder nearly all the world will receive him as such.
It will be when he comes on the scene as god he will then demand all to keep his holy day Sunday as he is lord of the first day of the week. Then some means will be to identify or mark the ones who will obey this decree he has made. Satan is the Sun god and Sunday is his day and instituted it through the apostate Papacy.
Re 14:8 And there followed another angel, saying, Babylon is fallen, is fallen, that great city, because she made all nations drink of the wine of the wrath of her fornication. ( false doctrine )
Re 14:9 And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his mark in his forehead, or in his hand,
Re 14:12 Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus. ( “patience” is enduring continuance )
Persist in Sunday keeping instead of Sabbath and when the Sunday is enforced the mark will be applied.
You may mark my words on this if you like.