You have not shown why that verse is talking about Jewish holy days EXCEPT weekly sabbath nor clean and unclean foods. That's your imagination overheating inspired by you know what.
Next, note I never said the verse 'proves' Sunday Worship, that's another strawman you are drawing
Now, here is how you study scriptures;
Romans 14:5 (KJV)
One man esteemeth one day above another: another esteemeth every day alike. Let every man be fully persuaded in his own mindPaul tells us of diversity; some believers (not cows) 'esteem' some days ABOVE others while others. He also makes it clear that it is up to them to follow their convictions. So esteeming some above others or not is an individual decision not based on nothing external.
What is 'esteemeth'?
????? (krin?)
Strong: G2919
GK: G3212
pluperfect, ???????? (3 sg), pr. to separate; to make a distinction between; to exercise judgment upon; to estimate, Rom. 14:5; to judge, to assume censorial power over, to call to account, Mt. 7:1; Lk. 6:37; Rom. 2:1, 3; 14:3, 4, 10, 13; Col. 2:16; Jas. 4:11, 12; to bring under question, Rom. 14:22; to judge judicially, to try as a judge, Jn. 18:31; to bring to trial, Acts 13:27; to sentence, Lk. 19:22; Jn. 7:51; to resolve on, decree, Acts 16:4; Rev. 16:5; absol. to decide, determine, resolve, Acts 3:13; 15:19; 27:1; to deem, Acts 13:46; to form a judgment, pass judgment, Jn. 8:15; pass. to be brought to trial, Acts 25:10, 20; Rom. 3:4; to be brought to account, to incur arraignment, be arraigned, 1 Cor. 10:29; mid. to go to law, litigate, Mt. 5:40; in NT to judge, to visit judicially, Acts 7:7; 1 Cor. 11:31, 32; 1 Pet. 4:6; to judge, to right, to vindicate, Heb. 10:30; to administer government over, to govern, Mt. 19:28; Lk. 22:30I'd go with the first meaning. Paul is talking of some people making a distinction between days and others not making. The context is quite clear that we should not judge those who esteem and those who don't .
The question,is the Jew who keeps the Passover esteeming it ABOVE other days? What about the Adventist and his Saturday? And what about the Catholic/Prostestant and his Sunday? And finally, what about those who esteem December 25th? above all other December days
All these esteem some days above others. Don't judge them
Paul by leaving the issue discretional relegates it to ALL religious observances to the least relevance in the life of a believer. This would be extremely careless and dangerous if eternity is pegged on esteeming one day above the others.
It is important to note that esteeming some days above others be it weekly sabbaths,new moons and holy days was ordained by God just like circumcision.
Paul circumcised and kept the days and yet spoke against the necessity for both. He circumcised Timothy (Acts 16:3) and he tells you it AVAILETH nothing (Gal 5:6).
Paul observing the sabbath is Paul being Jewish just as when he kept feasts which you have no doubt they was abrogated.
You can understand Rom 14:5 from the meaning of the verses around it. Paul, a Pharisee, knew about clean and unclean foods. Lev 11 must have been familiar to him as well as other regulations on holydays and new moons. The Sabbath commandment must have been familiar too, for he engages in Sabbath worship without equivocation in Acts 17.
I've done my part, now show me where you find Sabbath or Sunday worship in Rom 14:5.