Many humans are sufficiently sentient to realize that they themselves had absolutely nothing to do with their own existence. The reality that follows is that most sentient humans, reluctantly or not, admit that they do, in fact, exist, yet pro tem. And, accept the conclusion -- whatever is here on planet earth, is, in fact, here.
Humans have, apparently, always faced the identical mystery, for there is indisputable evidence that they recorded their take this subject in any way they could, from verbal to written records. Somehow, sentient humans have all realized… They indeed coexist with their own concept of ’good’ and ‘evil’… So,
Basically, Sentient humans conceptualize ‘gods’ to help them explain their quandary and also, of course to take any and all blame or credit for enforcing whatever their concept of ‘good‘ and ‘evil‘ happened to be.
By necessity, this requires many gods, for sentient humans can never agree on a universal definition of ‘good’ and ‘evil‘.
First Analysis Method -- Physical law
Although Newtonian mechanics has been superseded by special relativity it is still quite valid when the speeds involved are much slower than the speed of light, which is of course where humans presently exist in stases.
Newton’s third law states in summary, ’For every action, there is an equal and opposite reaction”
Most Sentient humans can agree that, indeed ’evil’ and ‘good’ as forces in one’s existence are both extant and opposite, but not necessarily equal.
That’s sufficient agreement for now.
Then -- further questions emerge. If either force ceases to exist, would the other cease to exist also? And, since sentient persons agree that they do exist and have always been throughout known history, where did they originate?
That other analysis:
There is only one tome from history that contiguously outlines matters from time before to the times hereafter. Granted there are others, but other than just one, they all leave conspicuous holes between times past and future.
To wit: There is Only One God who holds Up His hands and says “I done it” He freely admits to creating both ‘good’ and ‘evil’ .
Isa 45:7 I form the light, and create darkness: I make peace, and create evil: I the LORD do all these things. (KJV)
He even tells you how evil came to be. He says he gave all the will to choose.
1 Pet 3:10 For he that will love life, and see good days, let him refrain his tongue from evil, and his lips that they speak no guile:
11 Let him eschew evil, and do good; let him seek peace, and ensue it. (KJV)
He then outlines the beginning of mankind’s quest for understanding…
13 Thou hast been in Eden the garden of God; every precious stone was thy covering, the sardius, topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was prepared in thee in the day that thou wast created.
14 Thou art the anointed cherub that covereth; and I have set thee so: thou wast upon the holy mountain of God; thou hast walked up and down in the midst of the stones of fire.
15 Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee. (KJV)
So, one may ask, was evil the reaction to creation? It's like the age old 'chicken or egg' question. The truth is that it does not matter. humans are here.
And, as regards to the first of good and evil, I believe in fact, that evil was the beginning of creation.
This Simply because since I believe order is good, and chaos is evil, then I must admit also that order must first be chaos, hence ‘evil‘ must needs be first.
Secular Scientists concur that our universe was born from the chaos of the big bang. Perhaps so. Sentient humans only can argue about the whens and whats. But-- Does it matter? We already agreed to the present reality -- that we are here, now.
V 14 above tells us that indeed ‘evil’ was created as to be the very first anointed entity to be the representative of God to creation.
‘Good’ came only as a reaction in the second and final covering representative of man to God. It was God, himself. This second Adam, Jesus Christ took all the blame, either way, for all. Whether they be 'good' or 'evil'.
Thus if evil and good are opposites, and evil pushed us first, what can the result be but good?