What caused God to change from his Old Testament personality to his New Testament personality?

It was written by different people in different cultures. We aren't in God's images, god is our image.

The old Testament is so different from the new one because they were written by different fantasy authors. The first author wanted his main character to be an omnipresent vengeful spirit that ensured people did what it told them to because otherwise, they'd end up dead. The second author decided that, while to smote those who don't listen to you is, indeed, an admirable way of forcing people to pander to your every whim, this "God" fellow should be nice and caring, like you want other people to be.

Please note that both the old and new books are works of complete fiction that some (let's call them "silly") people have taken to be the truth. Just as fans of Twilight have wished it was real, so too did readers of the old Testament wish they had a spirit to watch over them. This whole thing has been blown way out of proportion and it's rather hard to believe that anyone can truly believe in this unfalsifiable hypothesis. It seems that when people read these things, they immediately think "Oh, it's in a book that's not in the fiction section, so it must be true! All hail Jebus!"

Actualy, when one reads the old Testament and reads what god did and what god created to do those worldly things, such as createing many Son's of God and giveing them a heaven to reside in and also giveing these son's human male reproductive organs. They were not human as humans were not created yet. Then for thousands of years, god used these son's in many evil mannors, like when the son's came to earth and took and raped many human women and had children with them. One must keep in mind all the time that the son's could never have done that if god had not created them with the human organs. And by the fact that god gave the son's the organs but did not give the sons any females in their heaven to use them onn tells one right there that god had plans for the son's with the human women. Then god was chatting with Noah after the flood and did mention to Noah that god was not going to be with man forever and then made some small talk about the rainbow and the age that humans have and then left. God may have been feeling in the dumps as to how god got blindsided by a wino, Noah, after the flood. Shortly after Noah hit dry land, Noah grew grapes and made wine, got drunk and had a porno sleepover with two very young daughters and got caught and in the confusion of getting it covered up, Noah created slavery amongs the humans. But, nomatter, god should have known that was going to happen. Then the New Testament was writen and humans now have a decision to make asto if their god of the O.T. would the things the writers of the N.T. said god did, like turn the Son's of God into Fallen Angels and make god's favorate created son, Lucifer, into Satan. Disband the son's heaven and send them to earth. There are no words in the O.T. of god ever punishing the son's for any deeds they did. They only did the deeds that god created them to do. There are billions of people that do not believe their O.T. god would create things and use them for thousands of years and then just chuck them aside for a kinder tender religion like the N.T. I have always thought the Christians should rethink their thoughts as if the O.T. god would do these things to it's created sons that god loved very much, what would stop god from doing the same to the humans in there heaven when the New Testament Vol 2 comes out. And where do the Christians get the idea the only creator god will be content in sitting on a hard slabe of gold listening to songs and praiseing for the rest of eternity and never createing anything again. I have allways had the thoughts that if there is a creator god and the only reason for it's existence was to create and if this creator god decided to retire there would be no reason it existed anymore. Christians might ponder that thought for some hours.

Christ is what happened.

God IS all knowing.

The OT was examples of things to come.

I believe all those things happened in those days.

But God knew HE would be sending Christ also, to save us from

death, "Oh death where is thy sting".

Now that Christ has come to the world we are no longer required to offer bulls as sacrifice, or burn incense or any of the things that were done in the old testament.

The killings were people who were out right rejecting GOD and worshiping man made idols.

It was their choice then as it is now.

Roman 10 explains how the people new of GOD even though they had not heard. Because the word is in your heart. But these people wanted visual effects and could not believe in an unseen GOD. That is the same thing that is happening in these days.

You want proof though you know in your heart the truth. But still reject HIM.

All HE wants is a broken heart and a contrite spirit and HE does the rest. He loves you and HE'S calling everyone. HE wants you to come to HIM for all your worries. But people just won't listen

GOD is the same yesterday today and forever.

God never changes. He has the same personality in both the Old and the New Testaments.

The Old Testament is about the Law and it's consequences.

The New Testament is about Grace i.e. undeserved favor, given to everyone of faith. Those of faith in the Old Testament received Grace too but those in unbelief received punishment immediately. God did not grant them time to change their ways like He does now. Those in the Old Testament with faith looked into the future to Jesus dying for their sins and those in the New Testament saw Jesus dying on the cross. We now look back in time to His sacrifice.

There is only One Almighty God. He has a plan for people and this planet. The Bible shows His plan as it is carried out in stages.

God the Father comes off like that in the Old Testament, Jesus is more loving. I'm not saying that there was a 'generation gap', but since God the Father and Jesus are 2 different persons, maybe (I emphasis maybe) they could have different views or thinking (although probably not, Jesus said he was one with the Father)

Jesus came to earth and got to know the creatures they (he, the Father and Holy Spirit) had created. I'm sure he did what the Father wanted, but they may have had some different ideas.

God is the same in both Testaments. He was only pronouncing judgment upon those who rejected Him in the Old Testament. In the New Testament God still pronounces judgment, but now it comes through the person of Christ who died for everyone's sins. When Christ returns He will issue final judgment upon everyone. Nothing has changed at all.

In the Old Testament we are in the "era" of the Father's will. Thus our Father in Heaven led the second born east and straight to the Promised Seed that was spoken of and promised in Genesis. Lucifer's seed or the first born and it begins with Cain, takes a wife heads west on land and LEADS all of his children or seed BACK in time to Lucifer's Kingdom. The second born in the Old Testament as I said, like Abel, Seth who "replaced" Abel, Isaac, and Jacob all lead us east and up to the promise so of course God had his children "take out" or destroy any seed heading west as this is an insult to His divine promise. In the New Testament era these two seeds change to the "natural born" seed that descends from the womb and the "seed" or sons and daughters that are born again of the Spirit. That second birth follows the theme in the Old Testament of the second born. In the New Testament era the theme is "redemption of all "seeds" as Christ paid the price in full by shedding His blood and proving His love and He did that by opening His Kingdom up on the EAST side of the actual cross for every one "who wills' to be born again or enter His eternal Heavenly Kingdom. And Lucifer's seed is still fighting this battle to keep the nations of the world in darkness with little to no light coming directly in from the eternal Kingdom of Christ in Heaven.

God was and always will be as He is now. People's perception and morality mature. God is our teacher, and as a good teacher He instructs on a level we can understand. We are a stiff-necked people, and He brings us along kicking and screaming

One must teach basic arithmetic before algebra, and after that, trigonometry.

We are the ones that do the changing.

Take this analogy...

A father tells his teen child what is going to happen, warning, with a sterned, loving and concerned tone (Old Testament) and than leaving His child alone to decide on his own his own future.

But what most kids don't see is the caring love the parent has for the child when the child is being corrected and warned.

God is present in the Holy Trinity.

He is the Father, the Son and the Holy Spirit.

The Cross represents the Trinity.