"From the beginning" is often a reference to the creation (or "restoration" if you are a Genesis 1:1-2 gapper like me) in Genesis chapters 1 and 2.
For example, Jesus told the Pharisees why Moses law concerning divorce was only a provision and not God's perfect will, He said,
"And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female .... He saith unto them, Moses because of the hardness of your hearts suffered you to put away your wives: but from the beginning it was not so." (Matthew 19:4, 8)