30 The times of ignorance God overlooked, but now he commands all people everywhere to repent, 31 because he has fixed a day on which he will judge the world in righteousness by a man whom he has appointed; and of this he has given assurance to all by raising him from the dead. (Acts 17:30-31)
The setting for acts 17:30-31 is that Paul is at the Areopagus in Athens, Greece. This is where the philosophers of the day debated. Paul gave a brilliant logical apology for the existence of the one true God instead of many gods created as idols. At the end he proclaimed that God, the One he identified, will judge the world by a man that He raised from the dead.
Only a handful of people responded, so why not more? Paul didn't mention the name of Jesus during his presentation. I wonder if that may be the reason for the poor response. Maybe he was only trying to build a bridge of understanding from the Greek philosophers to a very Hebrew view of God. This is what many people say we must do with other cultures.
I'm not so sure that is correct. At least in this instance. Putting myself in the place of these philosophers, knowing somewhat of what they believed, I don’t think they understood what Paul meant by judging the world in righteousness. Their culture didn't have a view of what righteousness means, not according to Christianity or even Judaism. I think we should see this as not a method of evangelism but as an example of what happens when the gospel is only partly preached. We can look at the results and compare them to other times Paul preached and many came to salvation.
I’m not saying that we should never use apologetics to try to convince someone of the existence of God. There is a place and time for that. However, if we do, we should also follow up with clarity about the gospel.
Lord, help me always preach Jesus even if I have to use apologetics first.