"The Sabbath is Saturday (Latin: Sabbatum). The Lord's Day is Sunday (Latin: Dies Dominica). Christians have set aside the Lord's Day for gathering together and breaking bread since the days of Acts. This is documented in that there Bible of yours. I could cite Catholic "dogma" that goes into why, but the fact stands for itself. (Acts 20:7)
As for eating swine, "Do not call something unclean if God has made it clean."
As for holidays - I could see where you'd have a beef if you reject Church Authority - but you have no scriptural basis for rejecting Church authority. Co-opting pagan celebration to honor God is not as sinister as you make it out to be.
As for graven images - by definition, a "graven image" is an image used for worship. Christians use images for reminders or to tell stories - not to worship. Bowing is not a form of worship - that's just a sign of respect (not worship) - and not to the statue itself, but to the person it represents. Just more nonsense. In Biblical times, people bowed to elders, leaders, etc. In the Western world, handshakes have evolved to replace much of that, but with education and perspective you will quickly figure out a bow is not "worship." People "worshiped" by offering sacrifices to gods. Back in the day, they often crafted images of those gods out of gold or stone or what not. You may recall the story of the Golden Calf. THAT was a graven image."
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The Sabbath is eternal, even to a thousand generations. The Day of the Lord in no way implies Sunday in the Bible. It is when He returns to rule and reign.
Acts 20:7 occurred after Sabbath in the evening, what we would call Saturday evening, but to the Hebrews it would be the beginning of the 1st day. That is when they typically have their meal after Sabbath services, while continuing their discussions.
Also, if you'll notice before that in Acts 20, they kept the Feast of Unleavened Bread. Even years after the death, burial and resurrection of our Messiah, the Disciples kept Sabbath, and our Father's set apart days, with no mention of keeping days that are accepted as holy now, which are in alignment with pagan days. Our Father hates the mixing of the Holy with the profane.
God never made swine clean. Food is clearly defined in Leviticus. God never changes. Peter even said that he doesn't eat anything unclean.
Isaiah 66 is prophetic of the end times.
16 For the Lord will execute judgment by fire
And by His sword on all flesh,
And those slain by the Lord will be many.
17 “Those who sanctify and purify themselves to go to the gardens,
Following one in the center,
Who eat swine’s flesh, detestable things and mice,
Will come to an end altogether,” declares the Lord.
Exodus 20:4 Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth.
5 Thou shalt not bow down thyself to them, nor serve them: for I the Lord thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;
6 And shewing mercy unto thousands of them that love me, and keep my commandments.