God created it all, that's the short message of Genesis 1:1 and John 1.
These texts point us to the creation of the world, from the detailed context of the Old Testament and the summary context of the New Testament.
Both texts point to a single truth: that God is the originator of everything in the universe, and he is the first cause of everything. This truth is frequently repeated in scripture. For example, Ephesians 3:9 says God, “created all things by Jesus Christ.” Colossians 16: goes further, it says, "All things were created by Him, and for Him," Romans 11:36 says "of Him, and through Him, and to Him are all things.”
Both Genesis and John underscore this truth. Everything starts with God, without him nothing would exist.
For believers, it is important because it reminds us that we who profess faith in the almighty have a knowledge of the order of the universe and our unity with all creation. This knowledge places us in a living connection with our Lord Jesus Christ.
We understand what Hebrews 11:3 says, "Through faith, we understand that the worlds were framed by the word of God so that things which are seen were not made of things which do appear.”
The world and its operation starts from God. In the same sense, anything we start should start with God.