I will give you $1,000.00 for every scripture you can provide that shows that the Sabbath was changed from Saturday to Sunday. The more you find, the more you will receive!
James 1:17 Every good gift and every perfect gift is from above, and cometh down from the Father of lights, with whom is no variableness, neither shadow of turning.
Acts 22:3 I am verily a man which am a Jew, born in Tarsus, a city in Cilicia, yet brought up in this city at the feet of Gamaliel, and taught according to the perfect manner of the law of the fathers, and was zealous toward God, as ye all are this day.
Ps 19:7 The law of the Lord is perfect, converting the soul: the testimony of the Lord is sure, making wise the simple.
Since the law of the Lord is perfect, there is no need to change or try to improve it. It cannot be improved. If it could be changed God would have changed it, and Jesus Christ would have never had to die on the cross for us. If it were possible, the cup would have been taken away from Jesus when He asked God to take away the cup from Him in the garden of Gethsemane when Jesus asked God to take it from Him.