This clearly outlines the creation stages.

But for this record, my focus was on:

V27. So God created mankind in his own image, in the image of God he created them; male and female he created them.

The greatest creation of all time is the creation of the first man, the first man is the direct image of lord Jesus Christ, thus the true light of god in context of physique and spirit.

Therefore it is expedient for man to count himself worthy of life because the focal point of creation was the man from God.