Rev 13:18 Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six.
chi xi stigma
khee xee stig'-ma
The 22nd, 14th and an obsolete letter (G4742 as a cross) of the Greek alphabet (intermediate between the 5th and 6th), used as numbers; denoting respectively 600, 60 and 6; 666 as a numeral: - six hundred threescore and six.
stigma
stig'-mah
From a primary word στίζω stizō (to “stick”, that is, prick); a mark incised or punched (for recognition of ownership), that is, (figuratively) scar of service: - mark.
The mark of the beast has to do with technology for the beast's agenda is there is no personal God to help mankind, and benefit them, but mankind's technology and devices can help to achieve peace on earth.
Which will be a microchip just under the skin linked to satellite with all information about the person on the chip including finances for no person can buy or sell without the mark, and to cut down on crime for if a crime happens they will know who was in the location and how close they were to the crime scene, and can locate lost people or whoever they want to locate.
Going along with the beast's agenda and worshipping the beast precedes taking the mark of the beast, and when they take the mark then repentance and salvation are no longer available to the world, and God can end sin on earth.
The New Age Christ, beast, will be of the occult, and the occult believes in the power of numbers for they are about the power of nature, and the adding, timing, and grouping of numbers which they believe will give them more power through nature.
The number 6 is the number of a man, or the soul of a man, so the New Age Christ assigned himself the number 666, a triple 6, for he believes it will give him more power through nature to evolve to be greater and spiritual, and to establish his kingdom.
Changing the day of rest or worship as the saints gather together has nothing to do with the mark of the beast.
1Ti 4:1 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;
1Ti 4:2 Speaking lies in hypocrisy; having their conscience seared with a hot iron;
1Ti 4:3 Forbidding to marry, and commanding to abstain from meats, which God hath created to be received with thanksgiving of them which believe and know the truth.
1Ti 4:4 For every creature of God is good, and nothing to be refused, if it be received with thanksgiving:
1Ti 4:5 For it is sanctified by the word of God and prayer.
God warns the saints of the new age movement and their false interpretation of the Bible based on the occult, and evolution, which they believe people are evolving to be spiritual, and Jesus is not Lord and Savior but a good teacher and love, and evolved to be an ascended master, and do not believe in a personal God but honor the God of forces, or the power of nature as their higher power the evolutionary process, and the New Age Christ is the final teacher and will claim to be God by evolving and will share this power with all people who follow him.
They will forbid to marry between a man and a woman for population reduction, and command to abstain from meats, reverence of nature, mother earth.
2Ti 4:2 Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.
2Ti 4:3 For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears;
2Ti 4:4 And they shall turn away their ears from the truth, and shall be turned unto fables.
The time will come the world will only want to hear the Bible, Christianity, according to their own lusts the new age movement which the new age movement will pave the way to the beast kingdom in Revelation 13.
When the New Age Christ starts working in the world after he establishes peace in the Middle East he will push the agenda of the new age movement until the world rebels against God and when they take the mark then God will end sin on earth.
The Pope and Vatican will embrace the new age movement interpretation of the Bible and the Pope will become the spiritual leader, and the Vatican will become the headquarters of a unified religious system based on the interpretation of the new age movement.