Why would anyone attack anyone for worshipping on a Sunday? Or Wednesday, or Saturday for that matter? As long as it is to Jesus and not the sun or the moon. Any day is a good day to worship the Lord. It's just there was a day set apart from creation to take the rest in that he gave us instructions in how to go about it. I trust he knows what is best for me. Do you know what a moed is, or a moedim?
Wow Ryan I think we have found a place to agree!

Not familiar with a "moedim"
If JLB would be as kind, we could most likely agree on many things
We probably agree on many things.
Genesis 1:14 <SUP class=versenum> </SUP>Then God said, “Let there be lights in the expanse of the heavens to separate the day from the night, and let them be for <SUP class=crossreference value='(
C)'></SUP>signs and for <SUP class=crossreference value='(
D)'></SUP>
seasons and for days and years;
Seasons here is the word moed. How it was used wasn't to say fall, winter, spring summer are here, but were for divine appointments to keep.
mô‛êd mô‛êd mô‛âdâh
mo-ade', mo-ade', mo-aw-daw'
From
H3259; properly an
appointment, that is, a fixed
time or season; specifically a
festival; conventionally a
year; by implication, an
assembly (as convened for a definite purpose); technically the
congregation; by extension, the
place of meeting; also a
signal (as appointed beforehand)
KJV Usage: appointed (sign, time), (place of, solemn) assembly, congregation, (set, solemn) feast, (appointed, due) season, solemn (-ity), synagogue, (set) time (appointed).
</ARTICLE>
Brown-Driver-Briggs' Hebrew Definitions
1. appointed place, appointed time, meeting
a. appointed time
1. appointed time (general)
2. sacred season, set feast, appointed season
b. appointed meeting
c. appointed place
d. appointed sign or signal
e. tent of meeting
As you can see, it is for appointments. If you look at the Sabbath's and the Feast days as God's day timer, he has a weekly and times throughout the year he wants to meet with us. If your boss said he wanted to meet with you on Thursday at 2 o'clock. Would you show up? That's kinda what God is saying to us here.
Leviticus 23:1-4
New American Standard Bible (NASB)
The Lord spoke again to Moses, saying, <SUP class=versenum>2 </SUP>“Speak to the sons of Israel and say to them, ‘<SUP class=crossreference value='(A)'></SUP>The Lord’s appointed times [moedim] which you shall <SUP class=crossreference value='(B)'></SUP>proclaim as holy convocations—My appointed times [moedim]are these:
<SUP class=versenum>3 </SUP>‘<SUP class=crossreference value='(C)'></SUP>For six days work may be done, but on the seventh day there is a sabbath of complete rest, a holy convocation. You shall not do any work; it is a sabbath to the Lord in all your dwellings.
<SUP class=versenum>4 </SUP>‘These are the <SUP class=crossreference value='(D)'></SUP>appointed times [moedim] of the Lord, holy convocations which you shall proclaim at the times appointed [moedim] for them.
Now if God made the suns, moons and the stars for us to remember to gather and observe his appointed times, why would he want his day timer to change? I could go on, but for brevity's sake. I think you get my drift why some of us want to keep the days he made. That's why you have people like us saying come and enjoy those days. Especially in light of the remaining feast days that need to be fulfilled still in the fall.