I believe that Sunday is not just another day of the week. For me, Sunday is the Sabbath. It used to be called the Holy Sabbath of the Lord, then just the Sabbath, and now more often than not, Sunday or the weekend. The progression of titles shows the trend society has gone through from reverence to ignorance of holy things.
God gave observance of the Sabbath as a commandment. Of course, He will not compel us to keep the commandment, but we are blessed when we do so. I think of it like traffic rules. Sure, you could run that red light, but you (and others) will be much safer if you do not travel through intersections when the light is red. Commandments are much the same; they are in place to keep everyone as safe as possible.
A period of rest is both for our bodies and our souls. Work is an important part of God’s plan for us, but He also knows that we have to rest as well. The Israelites were given manna from heaven to feed them in the desert as they wandered. But on the Sabbath, no manna was given and they were to collect extra the previous day to get them through the Sabbath Day. The other days of the week, they were not able to collect more than was necessary for one day. The Lord wants us to depend on him– physically and spiritually, and to look to him in all things, especially on the Sabbath Day.
And that’s what I think the Sabbath is truly for: Remembering Christ. Six days of the week we work and strive, taking care of our physical and spiritual needs. But on the Seventh Day we remember. We remember all the He did for us, that He died for us.
I also think that the Lord wants us to slow down and see the beauty in life. How are we to do that if we don’t stop every once in a while and just be? The Sabbath is a way to do just that- to stop and smell the roses. Or to stop and check the time. Is it 5:16 where you are?