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hippyjoe1955 Sorry but the 4th commandment is about keeping the Sabbath. Nothing to do with first born or bringing gifts to worship. Once again we can not prove who wrote Exodus in part or in whole. Some would say that the parts you quote are from later additions to the writings of Moses since they reference much more established worship (temple).
I have explained this issue multiple times. All you hve to do is take some time to read it for yourself. So, get a pen and some sheets of papers and start reading at Exodus chapter 19 and continue till the end of Exodus chapter 34. Exodus chapter 19 just sets the stage for what follows. And, as you read summarize every few verses in your own words.
You wil see that the commandments in Exodus chapter 20 were verbal and were not written on the stone tablets or called the Ten Commandments. Some Bible versions do headline the verses as the ten Commandments but they are fake.
As you read you will see that Moses did a lot of yakking and going up and down the mountain like a mountain goat. He got all kinds of fashion and decorating tips.
You will get to Exodus 31:18 before he gets the stone tablets written by the finger of God. Of course Moses got ticked off when the people wanted to exercise freedom of religion so he smashed the tablets and had his minions kill about three thousand men (they didn't count the women and children).
In Exodus chapter 33 God and Moses kiss and make up and in Exodus chapter 34 god told moses to chip out some new tablets and lug them up the mountain for a rewrite.
This is where you need to pay attention. Exodus 34:10 establishes the basis for the miracles. The real Ten Commandments are found in Exodus 34:11-26 and verse 28 plainly states that those are the damn Ten Commandments. If you pay attention to the biblical stories you will see that all of them in the Old and New Testament illustrate one or more of the real Ten Commandments. The writers did a very clever job in doing that.
The purpose of the stories is to act as a quiz so tha the listener, or reader, can identify which of the real Ten Commandments the stories are about. That's why the stories themselves sometimes are illogical. They are merely mnemonic devices.