Something cannot create itself. It needs a creator outside itself. Example: a lamp. A lamp has never spontaneously appeared. At one time it did not exist. Common sense knows it had a creator, and because it didn’t exist prior, it could not create itself. All material things (rocks, stars, trees, water) and all immaterial things (gravity, reason, logic, math, entropy) fall under the same principle. Only God, who exists outside of time and space, could create time and space, the material and immaterial.
So before you ask, “well then who made God?”, logicians of all persuasions have reasoned that God has to be eternally existent without beginning or end, all powerful, omniscient, and good. The universe declares His glory, and nature proves He exists as all of creation demonstrates the absolute existence of the designer/Creator. The invisible laws that run the entire universe are equally a part of His handiwork or there would be no material world. If God created laws in nature, math, etc, then it is reasonable to conclude the moral laws of right and wrong are from Him as well, and are indisputable by both reason and conscience.
When one thinks they can fly without aid of a created mechanism that would sustain them in the air, and step off a 10 story building, the invisible laws of gravity made by the invisible God of Creation, will take affect and that person will only be able to deny them for as long as it takes them to fall to the ground, go splat, and die. Yet, when we look at the 10 major moral laws and see we have broken them many more times than we can count (lying, lusting, hating, coveting, blaspheming, stealing, to name a few), there is an eternal falling to the ground where we go splat, with a future appointment with God as our Judge where will answer for our transgressions. Our guilt stands, impossible for us to redact, white wash, bargain away, or cleanse from our conscience by our own doing or merits.
But God, being supernatural, provided a natural and supernatural way for us to be forgiven and cleansed of conscience, where we could be reconciled to Him. This is important because by faith we see the invisible God in ways only the humble can, or we remain blind to evidence all around us.
The immaterial Creator took on created flesh, entered into the realm of our dimensions, walked among us and did miracles, lived a sinless life as only He could, and became the only satisfactory sacrifice He Himself could accept to pay the just penalty for humanity, and that was to Himself. The purpose was to restore us to fellowship with Him. The most brutal, tortuous, agonizing, and painful way humans have ever concocted to kill someone was by crucifixion, so this was the instrument God chose to die on. The necessity of this brutality also speaks to the grossness and wickedness of our sin that it would require such a thing. And there He died after 6 long wrathful hours.
But 3 days later…!!! The immaterial God was given authority by Himself to take His material life back up again, but this time with an indestructible and eternal body, the same of which He will give to all who recognize that they are transgressors of His moral laws, turn from them to follow Him, that they believe He, God, took on flesh and paid for their sins on the cross, and proved He was God by taking up His own life 3 days later! In our reconciliation He adopts us a His children, free from the laws of sin and death, to spend eternity in perfect love, joy, and peace with Him and all others who would repent and believe. Join us!