Hi Mzungu, yes, the sabbath day is a saturday.
Please keep in mind that if we serve the old law, we cannot break one commandment. If we do, we will be judged by the Law. This is a different judgement. A harsh one. ..... We are under grace now. The old law was for the Israelites only. We keep everyday holy now. Jesus freed us from the law when he died at the cross. I hope this helps.
Romans 7:6 But now we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not in the oldness of the letter.
True. I feel God has shown me this concerning His sabbath:
Its something precious to Him - it must be because of the seven days of creation He set a day in place of rest. So there is obviously something massive in that.
The sabbath was introduced to Israel, and so were laws - through Moses - and we can learn more about this concept of sabbath from the law, because it is expressed in more detail(in relation to Israel), and in relation to other things in a way that we can see it defined, and it begins to take shape. But the sabbath preceeds the law of Moses, and it speaks of the very essence and nature of God.
Then God speaks of a rest, or sabbath in Christ(it points to Christ). He died for us, so we live for Him. We cease from our own works, and live a life of faith in God, we die to our own desires and live in a way that His desires are realised through us.
So then there still remains a rest... as Paul explains. and I believe that this is explaining a time that is still yet to come, but dawns apon us, where we really start to enter into that rest, here on earth, and see His effort begin to manifest, where we are dead to self, and His life really starts to break forth.
And this will culminate in the restoration of all things, and all things being subjected to Him. And the end will come, and we will truly enter in to that rest, in a way that we cannot comprehend.
But yes, Saturday was the sabbath day, defined through Israel, and im sure it would coincide with full earth days since that first day of rest - day 7, because God is a God of order, and patterns. That day was altered (officially) by the Catholic church, to Sunday, for whatever reason... but in recent review of what I believe and why, i have decided to step away from the worship of God or "day to get together and unite as a body to glorify God" on Sunday, and revert to the Saturday, because I dont believe that the Catholic church has acted in honesty or in proper judgement and i cant see the justification for a change from saturday to sunday, in fact i see it as quite pompous.. I believe the rest of God is in Christ and is fullfilled in Him, and so specific days are not important, but I choose to make a stand in this to make a point. No one will rule me but Jesus Christ. And he lives, and interacts with His Church.
So at present, I choose Saturday - the correct day, and the ordained day, and refuse mans way. Because men desire earthly things, and seek glory and power. I seek God's glory, and God's power, in my life, and He deserves all honour. And i look forward to His rest fully being realised.