Was the Sabbath Day itself actually moved or did Jesus' fulfillment of the law render the Sabbath Day requirements complete or have we really just been ignoring the commandment to remember the Sabbath day and keep it holy or, as Scripture tells us, are we to be holy as God is holy every day by loving God with all our heart, mind, soul, and strength and loving our neighbors as ourselves?
I'm not sure that our setting aside Sunday as a day for worship and fellowship really has anything to do with a Sabbath rest but is instead just a day we set aside to commemorate Christ's sacrifice and to set aside some special time for Christian worship and fellowship.
Wip, appreciate your response, as all responses allow readers insight into the minds of those who post.
Would like to address your first paragraph, which is a rather large question. As to part of the question, "was the Sabbath moved". Based on my research their is not one word from Christ, in the new testament that would prove that it was moved from the seventh day to the first day of the week. However, Paul in (Heb. 4:4-10) speaks to the contrary.
"did Jesus fulfillment of the law render the Sabbath day requirements complete." First let me say why it was that Jesus had to fulfill the ten commandments. They are perfect, holy, righteous, and eternal, which is why Jesus Himself wrote them on stone, and ordered them kept beneath the mercy seat in the Most Holy Place, in the temple, on which rested His Glory. What does that say? They cannot be abolished. Jesus, had to fulfill them because no human is able. But because He has, God the Father will credit His righteousness to all through faith.
Yes, most of Christians ignore the Sabbath, because there is lack of understanding, and they usually do not want to research it to any degree for fear that it could still be binding on mankind. It is much easier to go along to get along. That includes religious leaders as well. Such is the condition of fallen man.
Yes, the first commandment says, we are to love God with all our heart, mind, soul/life, and strength. But doesn't that require obedience motivated by love and faith? (John. 14:15)
No, Sunday worship is all about mans assumptions, contrary to the command of God. See, (Matt. 5:19; 15:9; Mk. 7:7)
The following is tough to hear, However, Jesus said, "think not that I have come to send peace... but a sword[word of truth]. (Matt. 10: 34-39)