One thing that I am glad I never did was to buy a Bible that had a commentary in it. I was raised Catholic and they tell you in their Bible how to think about a passage. They nullify God's Word.
When I witness to some Catholics, they turn to those comments and it is like their mind has a vise-grip on it and they cannot think for themselves. Well, in fact, they are afraid to.
Probably one of the most beneficial things the Lord led me to do and I have done it my whole Christian walk, is to stay away from commentaries. Have I looked up some things? Sure. But I err towards, praying and asking the Holy Spirit to explain to me what is being said. I find that the Word explains itself and the Holy Spirit is the glorious interpreter.
Of course this way of doing things, has resulted in a lot of disagreement with the way man does things today.
Flesh can be so deceptively smooth and religious and holy yet be a complete counterfeit. We need discernment more than anything today.