Why is sanctification also called ‘re-creation’ in the Bible?

Luther:

Because it looks like creation. As the earth was wild and void before creation, so is the sinner before re-creation. And as God created out of this emptiness the earth to the harmony of the cosmos, so re-creates He also the sinner in the image of God. As the earth is created in six days, so is the sinner re-created from day to day.