What does 1 Corinthians 4:13 mean?
Paul has written that he and the other disciples have a specific strategy for how to respond when they are treated badly in their service to Christ. In short, they respond as Christ taught and did Himself when he was also mistreated (Matthew 5:38–48).He has written, in the previous verse, that when the apostles are insulted, they give blessing in return. They don't let persecution stop them. They keep going. Now he adds that when they are slandered, meaning that people say false and hurtful things to damage their reputations, they respond with kindness.
Paul sums up how he and the other apostles are thought of by the unbelieving world. They are like the scum of the earth. They are like garbage, to be thrown away. It's not just that the larger world sees them as nothing. The world regards them as something detestable that must be removed.
It will become clear that Paul is not asking for pity from the Corinthians. He wants them to see that they should not expect a life spent in service to Christ to be one of great wealth or status in the world's eyes. In addition, he wants them to understand the sacrifice being made on their behalf by those who minister to them.