Why do Christians insist on Sunday worship when the God of the Bible made it clear to do so on the Sabbath which is Saturday.

i thought it's because God rested on the 7th day.....

cause theyd rather do it sundays

It has anti Semetic origins after the church split from the Jews.
We can pray to God any day of the week at anytime and He will hear us. This post was edited by my2cents at October 31, 2017 1:00 PM MDT

First you need to decide which day (by name) your sky fairy started work to decide which day was the seventh day and as far as I know the day is not named anywhere.

The Word of God makes it quite clear that Sabbath observance was a special sign between God and Israel: “The Israelites are to observe the Sabbath, celebrating it for the generations to come as a lasting covenant. "It will be a sign between me and the Israelites forever, for in six days the Lord made the heavens and the earth, and on the seventh day he abstained from work and rested. (Exodus 31:16-17). God's intent for giving the Sabbath to Israel was not that they would remember creation, but that they would remember their Egyptian slavery and the Lord's deliverance. 

  There is no obligation for the New Testament believer to keep the Sabbath, and will also show that the idea of a Sunday “Christian Sabbath” is also unscriptural.  There is one time the Sabbath is mentioned after Paul began to focus on the Gentiles, “Therefore do not let anyone judge you by what you eat or drink, or with regard to a religious festival, a New Moon celebration or a Sabbath day. These are a shadow of the things that were to come; the reality, however, is found in Christ" (Colossians 2:16-17). The Jewish Sabbath was abolished at the cross where Christ “canceled the written code, with its regulations" (Colossians 2:14).

  This idea is repeated more than once in the New Testament: “One man considers one day more sacred than another; another man considers every day alike. Each one should be fully convinced in his own mind. He who regards one day as special, does so to the Lord" (Romans 14:5-6a). "But now that you know God — or rather are known by God — how is it that you are turning back to those weak and miserable principles? Do you wish to be enslaved by them all over again? You are observing special days and months and seasons and years" (Galatians 4:9-10)

  Biblically speaking, there is no specific day in which to worship. If you want to worship or go to church on a Sunday, Saturday, or even a Tuesday then go ahead. There is no Sunday over Saturday or Saturday over a Sunday. They're all the same. We should worship GOD every day and not just one specific day.  As far as that go's, there is no command to set aside a specific day in which to commemorate the birth of Iesous (Christmas). There are only two ordinances that a Christian is to follow. The first is baptism and the second is Communion/Lord's Supper. Neither of which needs to be recognized on any specific day.

  The problem with modern worship is that it contains too much pomp, ceremony, rituals and man-made rules and regulations, and too little genuine Bible-based worship done in spirit and truth. John 4:24  " God is spirit, and those who worship Him must worship in spirit and truth.”  

This post was edited by Benedict Arnold at November 5, 2017 12:52 PM MST

Not all Christian sects observe our current Sunday as the Sabbath. 

And keep in mind that the current calendar was not in effect back in the days when those words were handed down.

The Christians were originally Jewish but went off the track with the resurrection myth. We still observe Shabbat on Friday evening and Saturday, per my synagogue's calendar...

https://www.psjc.org/calendar?date_start=specific+date&date_start_x=0&date_start_date=2017-11-01

Seventh day is the sabbath? All over the internet where did you get this from?

When the Jews were under the Mosaic Law Covenant, they would have observed the Sabbath from sundown Friday to sundown Saturday. That Covenant has been replaced with a better Covenant and as Hezekiah brought out, no special weekly Sabbath for Christians.

(Colossians 2:13, 14) Furthermore, though you were dead in your trespasses and in the uncircumcised state of your flesh, God made you alive together with him. He kindly forgave us all our trespasses 14 and erased the handwritten document that consisted of decrees and was in opposition to us. He has taken it out of the way by nailing it to the torture stake.
(Hebrews 7:22) Jesus has accordingly become the guarantee of a better covenant.
(Hebrews 8:5, 6) These men are offering sacred service in a typical representation and a shadow of the heavenly things; just as Moses, when about to construct the tent, was given the divine command: For He says: “See that you make all things after their pattern that was shown to you in the mountain.” 6 But now Jesus has obtained a more excellent ministry because he is also the mediator of a correspondingly better covenant, which has been legally established on better promises.

https://wol.jw.org/en/wol/d/r1/lp-e/2010084?q=seventh+day+sabbath&p=par