Let us walk thru the NEW Testament and see if the disciples that people credit with informing us that we are not under God's Commandments (mainly Paul) actually followed the laws given to Moses. (Exodus - Deuteronomy)
Yes it is true as Christians we should pray and meditate everyday, however, on the Sabbath Day (Saturday) it is mandatory. Just as honoring your mother and father is mandatory.
Now in Acts Chapter 1 when Jesus ascends into heaven in the sight of the disciples it has been 40 days since His death and ressurection. In chapter 2 the disciples attend the feast of Pentecost (as instructed in the law).
By the time we get to Chapter 13, it is around 40AD, roughly 10 years after Jesus died and was ressurected. Saul has killed some believers, then is converted on the road to Damascus, taught by Christ and is now finally seperated to do what he has been called by God to do. And what did he do while preaching to the church in Antioch:
"Now when Paul and his company loosed from Paphos, they came to Perga in Pamphylia... But when they departed from Perga, they came to Antioch in Pisidia, and went into the synagogue on the sabbath day, and sat down."
Notice not just Paul but his company also went on the sabbath day.
"And after the reading of the law and the prophets the rulers of the synagogue sent unto them, saying, Ye men and brethren, if ye have any word of exhortation for the people, say on.
Then Paul stood up, and beckoning with his hand said, Men of Israel, and ye that fear God, give audience."
We all know and agree about what Paul said and preached here. He ran down the history of my ancestors from Moses down to Jesus. He explained how Jesus fulfilled the promises made to the fathers, and he preached Jesus Christ for the remession of sins. What is important here is 'when' he did his 'preaching to the masses.' After Paul's sermon the 'Gentiles' approched him to hear the Gospel. Let's see what day Paul decided to meet with them:
"And when the Jews were gone out of the synagogue, the Gentiles besought that these words might be preached to them the next sabbath." (v.42)
Not tomrrow, not next week on Sunday (what some call the christian sabbath). On the next sabbath. On God's Sabbath day the 7th day of the week the Gentiles came to learn about Christ.
So they agreed to come together on the next Sabbath. So let us see what happend on the next sabbath:
This is Antioch, a Gentile city. Outside of the land of Judea. And the whole city came to "Hear the Word of God" on the Sabbath day; taught by the Apostle Paul.