i believe it when scriptures describe how we do not see in full, that our ways are not God's ways, that we are called to live in faith and trust of God's plans.
i tend toward worry, so, it may not seem as though this is my belief! but, it is.
at the end of the day, and the beginning of the day, i try to live with my trust in our Lord.
when i do, i find peace.
so, whether God has every word and act in hand, or not, it's His to know, not mine.
we are called to faith and trust. for me, that means, "not knowing, as humans understand knowing in full."
as i review my life, i have no doubt God has been in control, and is in control, no matter how far away i might have "felt," or, how "in control," i may have believed i was. i don't believe this is unusual. many people look back over their lives and realize God led, in all circumstances.
after reading Hosea many times, i realized, God allows hardship with one purpose: to bring us closer to Him. He wants each of us with Him. he knows our rebellious nature, He knows pain is a sure means to put us on our knees before Him. this is not His hate for us, but His grace and love for us.
i don't have time to cite scriptures just now, but i can, if you like.
they are familiar passages, NT, nothing obscure.
in the OT, God's response to Gomer provides many insights to questions like, "why does God allow pain?"
Hosea consistently responds to God and Gomer in Christ-like ways, i understand this to be the OT "preparing for" or proceeding, the NT.
others on this forum have better words for what i'm fumbling to describe.