In Genesis 3:22, God is referring to Himself in the plural form, which is a common way of expressing majesty and authority in ancient Hebrew language and culture.
When God says "us," he is referring to the Holy Trinity, which consists of God the Father, God the Son (Jesus Christ), and God the Holy Spirit.
That God made it.
In the book of Genesis, God refers to Himself as "us" to indicate the presence of the Holy Trinity, which consists of God the Father, God the Son (Jesus Christ), and God the Holy Spirit. This plural form emphasizes the unity and diversity within the Godhead.
The word us refers to Christ and the Father.
It is everywhere in that book.
Genesis 1 is the Creation account according to God's view or the 'macro' view. The 'micro' view is found in Genesis 2 or Adam's viewpoint.
It depends on which god you are referring to.
God said "Let us make man in our image, after our likeness." "…God created man in his own image, in the image of God he created him; male and female he created them" (Genesis Ch 1)
genesis 1.29-30
Genesis 6:3.
Because God gave it to us (Genesis ch.28).
Because God gave it to us (Genesis 26:1-5).