Consistent theme of the Bible: None.
God is not to be put to the test... except when God tells one of His messengers to challenge others to a series of tests that would be mistaken for witchcraft such as with Moses.
God is good and is the only truth. Except that He will torment you without cause and engage in deception to settle a bet as with Job.
God is omnipotent and infallible, except that He was powerless before chariots of iron and His perfect creations fell to corruption several times over beginning with the angels and continuing with both the Earth and mankind upon it.
God is just and forgiving, except that He punished Adam and Eve quite differently for the same "crime" of being deceived by a jealous angel taking the form of a snake, the entire species of which was supposedly cursed to lose their legs even though the being that spoke falsely to Eve was not actually a snake and merely took the shape of one.
God is perfect but also jealous, wrathful, and prone to breaking His divine word as He did with Lot who was promised time to find a single good man to spare his city destruction.
Good and evil are absolute, except that God picks favourites and the Chosen may visit unspeakable atrocity upon the unfaithful without fear of reproach as with the genocide of the city of Amalek and anything God does and/or authorizes no matter how many of the rules it breaks or how truly monstrous is still an act of goodness.
The definition of a sin is clear... except no, they're really not. Lust alone is so utterly conditional as to be meaningless. In the slaughter of a city any virgin girl may be taken as a slave and raped. A man does not have to be a virgin on his wedding day but if his wife is not she is condemned to death. A man who is tempted in dreams by a succubus may repent but a woman suspected of such is condemned to death. When a man rapes a woman the woman is guilty of temptation and punishment is determined by a complex series of factors. Of the many many punishments the woman is more likely to die than her rapist but is in all cases getting the short and shitty end of the stick. When a man sleeps consentually with another man he is guilty of giving in to temptation and they're both condemned to die. If a woman does essentially anything sexual that her man does not instruct her to do she is guilty of lust. If a woman isn't constantly ready to sexually please her husband she is a bad wife. A man could have mistresses, concubines, and slaves he could freely have sex and children with. A woman even looked at a man lustfully, even her husband, and she was a harlot. When Amnon raped his sister God tacitly approved and destroyed his uncle Absolom's entire kingdom when Absolom took vengeance on the girl's behalf. When Lot's daughters raped him in his sleep and bore his children God approved even though they would have tripped over a dozen other sins at that point.
Thou shalt not commit murder, but put your fellows to death for many reasons, put your enemies to death for any reasons, and subject suspected witches to trials that will see them die either way.
Jesus explicitly took offense to much of the Old Testament and how it was enforced without mercy, a sense of human decency, or even a lick of common sense.
Stop pretending that the people calling for a logical grounding in reality are simply ignorant or even more bizzarely actively denying that "the truth" is some self-evident thing that would instantly convert anyone who read it. We have read it, the difference is we actually understand what we're reading and it is so contradictory, inconsistent, and at many times morally nauseating it could cause someone who already believes to lose their faith when they really sit down and think about it.