The falling away/apostasy continues to get worse right up to the return of Christ , through the age of the antichrist [wiith a false image of Christ viz instant salvation/redemption, mortal non-royal priesthoods, keeping of pagan days ,etc in christian churches]
soon we have Satan as the man of sin on earth extraodinarily rapidly rising to world power by leading a [long-awaited] UNIFICATION of religion behind this image of Chris and the keeping of Sunday['sign/mark of the beast'] in place of God's holy sabbath [ancient mark /sign of God]
The significance being that God's holy days carry the blessing of the hly spirit of truth whilst pagan days as kept by christain churches do not of course , thus one cannot 'buy oil ' [righteousness/Love] unless one keeps the holy days rather than keeping pagan days!
Thus we see how the "division" of mankind described by Jesus Christ occurs , it is the distiction between following pagan traditions and following what is holy to God according to the scriptures...
we see this significance of the true holy sabbath in the FUTURE in action in the endtime prophecies of Isaiah :-
Isa 56:4 For thus saith the LORD unto the eunuchs that keep my sabbaths, and choose the things that please me, and take hold of my covenant;
Isa 56:5 Even unto them will I give in mine house and within my walls a place and a name better than of sons and of daughters: I will give them an everlasting name, that shall not be cut off.
Isa 56:6 Also the sons of the stranger, that join themselves to the LORD, to serve him, and to love the name of the LORD, to be his servants, every one that keepeth the sabbath from polluting it, and taketh hold of my covenant;
Isa 56:7 Even them will I bring to my holy mountain, and make them joyful in my house of prayer: their burnt offerings and their sacrifices shall be accepted upon mine altar; for mine house shall be called an house of prayer for all people.
Isa 66:22 For as the new heavens and the new earth, which I will make, shall remain before me, saith the LORD, so shall your seed and your name remain.
Isa 66:23 And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the LORD.