Video from Gotquestions.org
"What does it mean that God works in mysterious ways? Why are God’s ways often so mysterious? Does God want His plan to remain a mystery?" from video introduction.
29 “The secret things belong to the Lord our God, but the things that are revealed belong to us and to our children forever, that we may do all the words of this law.
The reality of our earthly existence is we must learn to live and be content with what God intends and allows to be mysterious and hold on to the revealed things with faith and certainty.
It is a great mercy we do not know about all the many mysterious things in life and in our world. We frankly could not handle it. God is orchestrating all of human history.
Acts 17:26 26 And he made from one man every nation of mankind to live on all the face of the earth, having determined allotted periods and the boundaries of their dwelling place.
God works in creation with multiple billions of complex individuals past, present, and future, trillions of interweaving causes, effects of which each of us only experience a relative handful within the matrix of the Cosmos. God then works all of these things toward a conclusion when every knee will bow and every tongue will confess that Jesus Christ is Lord to the glory of God the Father.