Exodus 15-17

In chapter 16 we are told of Israel's introduction to manna; the bread from heaven that God provided. God supplied this food to teach Israel a number of lessons. I believe one of those lessons was that our relationship with God is not based upon any ritual. From Sunday to Thursday of that first week the people developed a new morning ritual. Get up early enough to gather enough food for today.  On Friday God gave them a different expectation; gather enough food for two days. Then on Saturday morning the people were told to sleep in. They were to rest. God had provided enough from the previous day and they did not need to gather or cook. We also must be careful not to focus too much attention on doing things exactly the same every day. Our focus should be on watching God provide for our needs and giving him thanks.
Stuart