It's the quality more than the quantity of Bible study that matters. Also, it's more what you pray for rather than how much you pray or even how earnestly you pray that matters. There are enough cult leaders and their earnest devotees who have years of Bible study notes piled from floor to ceiling in their offices and living rooms. They pray, or at least claim to pray for an hour or more every day. Yet, what is the product of all this Bible study and prayer? They commit and/or condone abominable acts and teachings that disgrace the name of Christ. They scour the Scriptures, looking for anything to justify the sins of leaders whose sins cry to heaven. In this, they drag God down into the mire of their peculiar moral relativism. Bible Study, prayer ... and abomination.
I know of a long time UBF man who has his UBF Bible study material filling two 8 foot tall bookcases in his living room. Of course, this material just rehashes the same UBF "canon" (Lee's interpretations of Ge, Mt, Mk, Lk, Jn, Ro) year after year and decade after decade. He also seems to get up early everyday and pray for a good while. But this same man has been fiercely loyal to Samuel Lee and the Lee family to this day, even after living in fear of Lee for years, even after witnessing Lee's abuses against so many others and even against his own children. He has a daughter who has a chronic health condition and whose son has autism. I guess he prays earnestly nearly every day for her and her son. But what comes of this prayer? One day he tells his daughter that he has had an epiphany: If she has another child (though she's already had two C-section births) then her chronic health condition will go away and so will her son's autism. Is this what decades of faithful UBF Bible study and prayer is supposed to produce?
How can people who have seemingly studied the Bible faithfully for decades hold to such a shallow and superstitious view of God, that God punishes people for leaving UBF or for giving "not respectable" offering amounts or for being "rebellious" toward "God's servants" or various other things that are considered "sins" in UBF? How can they believe after all that Bible study that God can somehow be "appeased" through big offerings or other such acts of "penance?"