The answer is ... Love.
How can you believe that? God is fictional but according to fictional anthology of the Bible, he is certainly not LOVE.
God sets up a sting operation. He places a tree of Knowledge in the middle of the garden and forbids Adam and Even to seek that knowledge (i.e. remain bipedal apes).
He knows the human brain is primed with an unquenchable desire for knowledge. Adam and Eve seek knowledge (eating the fruit) and God takes away their immortality. How can God be LOVE?
Cain and Abel burn sacrifices to God. Cain, the farmer burns crops. Abel the shepherd burns a sheep. God rejects Cain's offering but is pleased by Abel's. That act of turning brother against brother caused a killing. Moreover, God instigated it all. How can God be LOVE?
Because some human adults sinned, God kills every living thing on Earth (millions of men, women, children, babies, foetuses, and pregnant mothers plus a trillion or more non-human animals who committed no sin. Baby humans committed no sin. God allows a handful of humans and pairs of non-human animals on a small wooden boat called the Ark, with not power by oars, sails, paddle wheels, steam/coal engine, diesel engine, or nuclear reactor. Ark was simply adrift in a new world ocean. Think of the millions of people a trillions of non-humans who perished because God had a temper tantrum. God is LOVE?
God sent Satan to torture Job. Job was a good man who loved God. Because of God's insecurity and ambivalence about Job's love, he had Satan torture Job and his family. God is LOVE?
God sent a series of plagues to kill innocent Egyptians and their animals because Pharaoh refused to let the Jews go. However, God hardened (or pre-hardened) Pharaoh’s heart guaranteeing Pharaoh would not release the Jews. He did this to show off his mighty power. God is a supreme show off, but is he LOVE?
God promised Moses and his nomadic band of Jewish raiders, the lush land of Canaan. He commanded them to attack defenceless cities (defences because of withdrawal of the protective Egyptian military garrisons). He ordered the Jews to slaughter men, women, children, babies, and pregnant women but take virgin girls for sex slaves. God is LOVE?
God believed that people in the Jordan valley cities of Sodom and Gomorrah had people who were sinning. Therefore, God destroyed the cities by fire and brimstone, sparing only the incestuous Lot and his family. God is LOVE.
Actually Sodom and Gomorrah were destroyed by an earthquake and long line of hot volcanic lava. We saw the same kind of linear eruption in Iceland. Hence, fire and brimstone which is burning sulphur. The Jordan River valley is a long tectonic rift that has erupted many time spreading lava and deadly pyroclastic flows. After the ejection of the lava, hot rocks, pyroclastic flows, and dust cloud emptied much of the magma chamber, the Jordan valley collapsed to become the lowest places on Earth.
So God did not actually destroy the cities, nature did. Pyroclastic flow engulfed Lots wife who lagged behind and she was covered just like the bodies at Pompeii. That gave rise to the myth of her being turned to salt.
If God created man and non-human animals, why did he create disease causing bacteria, parasites, and viruses? Why did God create infant and childhood brain tumours? Why did God create genes that produce horrible familial diseases? God is LOVE?