Studying the word of God can be done in one of two ways. You either start with your conclusions and find them in the scriptures (what is called eisegesis) or start with the text and investigate what it says (exegesis).
I have noticed a trend. Those who are most certain about their beliefs tend to present lessons in a more topical/eisegesis way – the Bible says X, Y, and Z and you can find that here, here and here. But those passages may not even actually be about the topic they say it is about.
On the other hand, a person who does not believe they already know everything is coming to the text to learn rather than to confirm. Those who believe they already know everything don’t feel they have much to learn. The truth has been discovered and locked in a box to be pulled out and used as convenient. But the reality is the scriptures have depth to them we can never fully understand…when you come to the Bible believing that you will investigate to learn rather than study to confirm what you already believe.
Now, I do believe studying to confirm has a place. There are bedrock truths we need to go to the scriptures and make sure they say what we believe them to say to understand for ourselves and so we can present that information to others. But if all you ever do it study to confirm what you already believe your spiritual growth will be stunted.