. . . and populate Earth with humans?
My conclusion is that he was bored and was looking to spice things up a bit. And creating evil was a stroke of genius---it insured that human interactions would never settle into the mundane and monotonous, but insure millennia of entertainment. Conflict and struggle is where the action is, so conflict and struggle it would be.
Which means that like it or not we're god's Punch & Judy show.
Of course, if you know of some other reason god created all this stuff, please share.
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It is always difficult to find a satisfying answer if we begin with the question why God created this universe.
We need to go backwards from where we are. Science takes us back to the big bang as the source of the universe. But then it stops with that. Why the big bang, who started the big bang, science has no answer.
what propels the universe and actions, sages tell us, is that desire is the motivating force. Without desire there will not be any movement. It is desire that dominates the world and runs the world. This desire creates time, causes conflict, violence and suffering. Buddha said that suffering is caused by desire and we need to stop desire to be free from suffering. But Buddha does not go further. He does not answer the question: why desire.
St.Paul says that the whole creation is groaning to give birth to the sons and daughters of God. The source of human desire is to become and sons and daughters of God. When we are not aware of our ultimate goal our desires are wrongly projected and that causes suffering.
if we go little backward and ask: why this desire to become sons and daughters of God: we touch God. this desire to become sons and daughters of God in us and in the creation comes from the desire of God:
what is the desire of God? the desire of God is to manifest his or her infinite attributes like love and compassion.
In order to manifest divine attributes God needs sons and daughters. Hence God's desire propels, human desire to be like God, St.Paul said, the whole of creation is eagerly growing to give birth to the sons and daughters of God.
The evolutionary process of the universe is meant to produce a level of consciousness that is capable of realizing that it is the son of God or daughters of God. in the Biblical tradition Jesus Christ has reaching ultimate stage of evolution, when he said, I am the Son of God and I and the Father are one.
God does not create the universe directly. It is the natural desire of God that brings forth the creation which is a long process of billions of years of evolution. Realtive evil belongs to the process of evolution. When the human consciousness reaches its ultimate goal then it goes beyond relative good and evil and enters into the absolute good that has no trace of Evil.