“Then he said to them, “This is what the Lord has said: ‘Tomorrow is a Sabbath rest, a holy Sabbath to the Lord. Bake what you will bake today, and boil what you will boil; and lay up for yourselves all that remains, to be kept until morning.’ ” Exodus 16:23
Most people know their blood type because at some point in their lives a sample of their blood has been sent to a lab and tested.
I don’t know the history behind the testing process we use but I do know what the process is. When I was in college I took Anatomy and Physiology and in one of the lab portions of the class we all collected and tested our own blood to find our blood types. The process is really quite simple.
Three samples of your blood are mixed with three different substances: type A antigen, type,B antigen, and RH factor. If any of these substances causes your blood to react by clumping, or sticking, together then that substance is added to the name of your blood type: A for the A antigen, B for the B antigen, and + or – for the RH factor. If your blood doesn’t react to type A or B they label it type O.
My blood type is AB+ which means that it sticks together with all three substances. If a person’s blood doesn’t stick together with any of the substances then their blood is called O-.
Because I took that Anatomy and Physiology Lab I know my blood type because I actually saw the testing myself. I have an experience that demonstrates the truth of my blood type.
Because of the falling of the manna the Jewish people have, as a part of their history, an experience that demonstrates the truth of God’s sabbath. The timing of the Sabbath wasn’t just something they were told and believed, it was something that they were shown and they experienced week after week for more than forty years. Every sixth day when they were able to gather twice as much manna they knew that the next day was the Sabbath and every seventh day when the extra manna they’d gather didn’t rot and no new manna appeared on the ground they knew that the sabbath had come.
The manna doesn’t continue to fall but God is still here and his sabbath does continue to come to us every seventh day. God knew that his people were prone to forgetfulness and that’s why the fourth commandment, of the Ten Commandments, begins with the word “Remember.”
But the experience of God’s sabbath isn’t limited to one people group. God promises anyone that if they will keep his Sabbath he will give them a special blessing of his presence. And just as the manna gather on the sixth day was multiplied so that it would provide for the seventh God continues to promise that if we will keep his sabbath he will bless our labors so that all seven days are provided for.
That’s an experience we can all have and a promise I think any of us would like to hold on to.