The argument for a First Cause of being

There seems to be a basic for behind all of these arguments with only a different starting point.
Each argument begins in some characteristic of being (change, causality, contingency and perfection, respectively) and then argues to a First Cause:

1) Some dependent beings exist.

2) All dependent beings must have a cause for their dependent existence.

3) All infinite regress of existentially dependent causes is impossible.

4) Therefore, there must be a first, uncaused Cause of the existence of every dependent being.

5) This independent Being is identical with the "I AM" of the Scripture. The implication is that it is impossible to have more than one necessary and independent being upon which everything else exists for its being.

John 8:58

 “Very truly I tell you,” Jesus answered, “before Abraham was born, I am!”