References: 

1. The concepts of potentiality, actuality, and pure actuality. 

2. Pure actuality is devoid of potentiality whatsoever. 

3. A necessary existence is changeless. 

4. A necessary being and an uncaused being are logically equivalent. 

5. There can only be one necessary or pure actual being. 

6. 5 Ways for the Existence of God by Thomas Aquinas. 

7. I give several biblical passages that show that the God of the Bible is a necessary being. 

8. We know the First Cause of the universe is uncaused, therefore, necessary. 

9. By 5 above, there can be only one such being. 

10. Thus, the First Cause of the Universe is IDENTICAL to the God of the Bible.

This is episode 55.