Theism makes a crucial entailment. And its like 99% of the reason why I am a Catholic Christian actually.
If God exists, then God must defeat all evils.
But in order for God to defeat all evils, God must reconcile all creatures back to him at some point in time at a probability of 1, due to Gods goodness
In order for this to occur, God must not only be compassionate to all creatures, know what they experienced, but must maximally relate with all creatures so they may be maximally intertwined in God's Love in the Beatific vision (marriage with God; maximal possibly good state of affairs)
So God must at some point in time, incarnate as a creature, and not only experience a unique life of horrific suffering, but must also experience all the lives of all creatures, and then experience all horrific sufferings all creatures have experienced, from the past, present, and future. God must incarnate into the lowest of the low, and must be in the lowest of the low, and experience the lowest of the low, and then experience all possible events of suffering, in order to fully relate with all creatures.
The religion on Earth that has this model of God (1) incarnating as a creature (2) becoming a servant (3) experiencing a death of horrific suffering, is Christianity.
Furthermore, if God exists, God would create an S-World, and an S-World would be an evolving world. So this world will be evolving, and be axiologically trajecterous, achieving over time into becoming a state of affairs more and more until it is fundamentally good. Because God will radically defeat all evils, showing the creatures that were victims of suffering, "behold, I will defeat all your evils, and the very place that you experienced them, it too will be destroyed, and turned into something good." An evolving world evolves all of its properties, including alethic (truth-related) values. A truth-value that is extremely valuable, is knowledge of God, the crux and most fundamental entity of all reality, who is identical to goodness itself as understood in classical theism.
It would be predicted therefore on Theism, God would instantiate at some point in time, an organized religion, where God reveals the alethic truth of belief and fellowship with God. @Jacky_wacky
So if Theism is true, it predicts the existence of (1) a creature that is God incarnate (2) God incarnate must experience horrific evils and (3) an organized religion