I've been studying and teaching the Bible for a long time, why do I still have so many questions?

I've been studying the Bible for a long time, why do I still have so many questions? The Bible is a book revealing the mind of God to us. There will always be questions, but thankfully there will always be answers too. We should enjoy the discovery of truth and allow ourselves to learn new things as we are changed into the kind of people God wants us to be through our encounter with the text.Passages Referenced:2 Timothy 2:15; Matthew 4:4; 2 Timothy 3:16-17; John 8:31-32; Acts 17:11-12; Ephesians 3:3-5; 2 Corinthians 3:18; Psalm 1:2; Joshua 1:8; 1 Peter 1:10-12; 2 Peter 3:15-16; Daniel 12:5-9; Revelation 17:6-7