If God is unchangeable, why is Sunday worship preffered than Saturday which is originally THE SABBATH or 7th?

So WHAT DAY DO YOU WORSHIP?

I know this is an age old question but i want to know what u guys think?

Refering back to the 10 commandments, if Jesus didn't change the Law but kept the SAbbath to the end; did not sin and didn't break any part of the law.... Sunday worship because of Constantine is obviously a sin and is misleading a lot of Christ followers today, don't you think??
The argument for observing the Lord's Day on the first day of the week instead of the Sabbath on the seventh day is not based on a direct EXPLICIT COMMAND to do so, but is DEDUCED from Biblical theology and historical example.

Like some other major Christian doctrines - the Tri-unity of God, for example - the change from the Jewish seventh-day Sabbath to the Christian first-day 'Lord's Day' is arrived at 'by good and necessary consequence.' Let me explain what that means using a silly example of 'good and necessary consequence:'

Let's say a certain portion of text tells us that 'all normal dogs have four legs.' Another passage in the book informs us that 'Spot is a normal dog.' There's no passage that directly says that Spot has four legs, but it is necessarily so because other passages lead unavoidably to that conclusion. For our purposes here, we must deduce by necessary consequence that the Old Testament Sabbath has been changed under the New Covenant to the first day of the week. Just as we deduce other foundational doctrines by necessary consequence: The Trinity, the nature of Christ (both fully God and fully man), etc.


How is Sunday 'Lord's Day' worship deduced from Scripture?


I. It is the day of Christ's resurrection (Matt 28:1; Mark 16:2,9; Luke 24:1; John 20:1).

II. Christ chose to appear repeatedly to His disciples on the first day of the week (Matt 28:9; Luke 24:15-31, 36; John 20:19, 26). This pattern of appearance is carefully noted by the Gospel writers in a way that is obviously not arbitrary. Jesus chose the first day of the week to strengthen the Apostles' faith, instruct them in doctrine, issue commands, engage in fellowship, and break bread.

III. The practice of the Apostolic church was to observe the first day of the week. The Apostles met together on the first two Sundays after the Resurrection (John 20:19-26). They also gathered for corporate worship on Pentecost Sunday (Acts 2:1). Just as the disciples had been gathered together (probably in the upper room) on the first Resurrection Sunday, the next (the second) Sunday (John 20:26), and likely every following Sunday as well, so too they were gathered 'with one accord in the same place' - the upper room - on the eighth Sunday (Pentecost Sunday) when God's Spirit descended upon them.

IV. The abiding nature of first-day observance is demonstrated by Acts 20:7 'Now on the first day of the week, when the disciples came together to break bread, Paul ... spoke to them and continued his message until midnight.' Even several years after the resurrection the practice of the New Testament church was to meet on Sunday (Revelation 1:10). They met to hear the Apostles preach, to observe the Lord's Supper and to study the Scriptures. In Acts 20:7 note that the disciples did not meet on the first day of the week simply so that Paul could preach to them before his departure (as some suppose), because if the only reason for that gathering was to hear Paul's farewell speech, he could have preached it on any given day during his two week long sojourn there. And from a Seventh Day Adventist point of view, you would expect this sermon to have been preached the previous day! But there is no mention of any Saturday sermon, nor of any Saturday meeting at all.

V. In 1 Corinthians 16:1-2 the Apostle Paul directs the collection of offerings on the first day of the week and no other. This was the practice of the churches at Galatia as well. This not only shows that they worshipped on Sunday but also that giving was a regular part of worship. This is to be expected because it was also the practice of Jewish synagogues to receive tithes and offerings during their corporate worship services on Saturday. The New Testament church was to a large degree patterned after the Jewish synagogue. The argument of Seventh-Day Adventists is that collections were made on Sunday instead of Saturday because it would have been a violation of Sabbath law to do bookkeeping on that day. Here's why that argument doesn't hold up:
A. The Jews did collect tithes and offerings in their Saturday services and engaged in 'bookkeeping' related to charity for centuries without God's disapproval.
B. Jesus taught that works of mercy were permissible - even required - on the Sabbath day (Matthew 12:12 and Mark 3:4).
C. Works of mercy on the Sabbath are commended in the Old Testament as well (1 Samuel 21:6, 2 Kings 4:23). If the post-resurrection Church held it's meetings on Saturday, it is more than probable that the collections would have been made then, rather than on the first day of the week which Paul specifically commanded.

VI. Revelation 1:10 demonstrates it. 'I was in the Spirit on the Lord's day,' the Apostle writes. How do we know that was the first day of the week? Every day is the Lord's day after all, isn't it? But John made it a point to tell his readers when he had his visions. He used an expression that Christians living in John's time would instantly recognize as the day of Christ's resurrection. The use the term 'the Lord's Day' (the Greek form is kuriake-os, -on) is also used to describe 'the Lord's Supper' (kurios deipnon) which as we have already seen was usually if not always observed on the first day of the week.

VII. The Apostle Peter used Psalm 118:22-24 to refer to Christ's resurrection in his speech to the Sanhedrin (Acts 4:8-12). That passage identifies the day of Christ's exaltation as a day of rejoicing and gladness. Whatever meaning you put to psalm 118, it's impossible to ignore the meaning that Peter put to it, speaking under the unction of the Holy Spirit by the way: The great day of rejoicing, the Lord's Day, would be the day that Christ rose from the dead! 'This is the day that the LORD has made! Let us rejoice and be glad in it (verse 24).' Peter's speech to the Sanhedrin is the origin of the term, 'the Lord's Day.' But there is more than this anecdotal and circumstantial evidence. There is theological evidence also:


Theological reasons for First-Day observance


I. Re-Creation: Jesus Christ, the Second Adam (Romans 5:12-21) created a new order, a new covenant. His life, atonement, and resurrection are the foundation for the regeneration of all things (Romans 8:18-23).

II. The Change of the Sabbath from the seventh day to the first day of the week was anticipated in the Old Testament:
A. Circumcision was performed on the eighth day of male child's life (the first day of the second week) and represented the new birth (as the old covenant was a shadow of the new).
B. The day of dedication of the firstborn son was the eighth day. Again foreshadowing the new covenant, Jesus Christ is called 'first born' (1 Corinthians 15:20 and Romans 8:9). The writer of Hebrews calls the people of God 'the assembly and church of the Firstborn (Hebrews 12:23).'
C. The eighth day was a day of cleansing from defilement in Old Testament law (Leviticus 14:10; 15:14, 29). The Apostle Paul points to the believer's union with Christ in His resurrection as the reason that Christians are no longer bound by sin (Romans 6:4-5).

There are far too many parallels between Old Testament shadow and New Testament substance to ignore, or to attribute to mere coincidence. Christ has accomplished RE-CREATION (Revelation 3:14, Colossians 1:15-18). The Apostles taught that Christ's re-creation is every bit as significant and important as the first creation! Re-creation in and through the Second Adam - foreshadowed constantly in the Old Testament - is the main basis for the shift from Jewish observance of seventh-day Sabbath to Christian observance of the eighth-day Lord's Day (first day of the new week).
Frankly i don't think it's so much the issue of the day exactly. You're talking specifically about something set over thousands of years of history. For all we know the Sabbath could be a Thursday.
What Constantine did was set a standard for it and setting a standard has nothing wrong with it, even though in this case it wasn't done for the perfect reason. I think God is happy with us keeping the Sabbath on whatever day it happens to be. For Christians it happens to be a Sunday thanks to the tradition set forth almost 2000 years ago.
But that's just my thought on it.


Answers:
Sunday Sabbath is heresy
Easter Sunday is heresy
Heresies (all iniquity) is an abomination to God.

Those who love God with all their heart, soul, mind, might, also love His Law, the Torah - His will circumcise their heart with His will written on it.

One-hour and then back-to-worldly- pleasures won't make the mark. Begrudgingly observing the Sabbath won't cut it. If you love the holiness of the Sabbath, you've got it! :)

[See 'How to test a prophet...?']
Constantine had no role in setting Sunday as the day of worship. Where do people get these weird ideas about Constantine doing everything? Worshipping on Sunday was done, as recorded in the Didache and the Book of Acts, centuries before his birth.

http://www.earlychristianwritings.com/didache.html

Why do we worship the Lord on a Sunday? That one's real simple. He saved you on a Sunday. He saved me on a Sunday - four days after Passover on 14 Nisan, long ago in first century Judaea.

You don't think that's cause enough to worship? Every Sunday, we honour what was done for each of us on the day of the New Creation - when death itself was destroyed. The New Creation certainly far exceeds the old, and there's nobody gonna stop me from thanking him that day! :-)
The Sabbath is definitely Saturday, from Friday evening until Saturday evening in fact.

Sunday is the day on which Jesus resurrected, so that became a holy day for Christians, and so they began to meet on that day. But it is not the Sabbath.

The Sabbath is a ritual commandment, and as such, many Christians probably classify it as one of the unnecessary commandments. They only keep the moral laws usually.
First question you must ask yourself before you get onto this subject.

By who's calender are we representing?
When the earth was created, the ONLY calender was God's.
God had told us to worship the sabbath and make it holy. When Jesus was born, Julius Ceasar was to create the Julian calender. Of that day, they used the day of Sunday to worship. (Wasnt called sunday on that calender, but is what it is to us now.)
What day would it be worshipped on the Jewish calender? Or the Muslum calender? All calenders are NOT the same.

Before you start blasting people for not celebrating what you assume is the sabbath, God allows a day set aside for celebration of him!
Everyday is suppose to be a celebration of God. The sabbath is a day we are suppose to not work and celebrate the awesome power and love of God!