And he said unto them, The sabbath was made for man, and not man for the sabbath: therefore the Son of man is Lord also of the sabbath. Mark 2:27, 28.
There is an astronomical reason for the length of the year. It is the time it takes for the earth to travel around the sun--365 days, 5 hours, 48 minutes, and 46 seconds. And it never varies. The month is based on the relationship of the earth to the moon. The day is based on the rotation of the earth on its axis. Have you pondered lately that there is no astronomical reason whatever for the week? The only reason for the week, in spite of the skeptics and the infidels, is Creation. Every time a person in this world, regardless of his thinking, his profession, or his religious beliefs says, "Today is Monday, the second day of the week," he is admitting the Creation story!
You can dismiss and argue science and religion until you are blue in the face, but as soon as the scientist says, "Well, I'll see you on Thursday," he has lost the argument right there! It can be shown by Scripture, and even by history, that the weekly cycle has never been broken from the very beginning of time. The God of heaven who was in charge of the whole idea in the first place has done His job in preserving this fact.
Jesus said that He is Lord of the Sabbath. It is a mark of His creative power. This is what made Him Lord of the Sabbath. It was given in honor of Creation. To say that the Sabbath was made for the Jews would be the same thing as saying that the world was made for the Jews! The world was made for man, and the Sabbath was made for man as well.
The Bible says to remember the Sabbath day. What does the Sabbath show us about Jesus, who is Lord of the Sabbath? For one thing, it indicates that Jesus is a great liberator. The Sabbath was given anew to the Israelites when they were freed from slavery in Egypt (Deut. 5:15). We are carnal, sold under sin. But Jesus comes to us today and offers us freedom. He becomes our Liberator today. The Sabbath is a weekly reminder of that fact. When we accept the gospel, we are freed from being rebels. We may still fall and fail as we grow, but we are freed from our rebellion, and are given cause to celebrate the freedom that the Sabbath represents.