I'll tell you what's more important than all the commentaries in your library: prayer.

Forgetfulness of God's grace is one of the greatest tools in the enemy's war against our souls.

Sin claims to free but in fact it kills.

Evangelism is not imposing anything on anyone; it is simply sharing the truth.

I don't see a clerical class in the New Testament to which evangelism has been delegated. Preaching is not the only way to evangelize; it can happen in everyday conversations too. And you don't need a special gift to witness to the Lord in these situations.

Advice on evangelism needs to be tailored to individual situations. For instance, I know someone who needs to be encouraged to speak less and work more. That would be a better testimony for him because he has certainly let his work colleagues know about Jesus. It's not that I don't want him to witness about Jesus, but I have a lot of sympathy for his employer. He is paying for work to be done.

Too often preachers want to deal with people simply at the level of publicly accessible reason. We participate with them in their own epistemology. But this is not New Testament preaching. We have a message that is not from this world; it is from God. We don't know it by our own cleverness; we know it because God has revealed it.