1 Corinthians 4:1-5 is a hard one to understand for me. Paul reminds us that we are the be regarded as "servants of Christ and stewards of the mysteries of God." He goes on to say that stewards are required to be found trustworthy. And up to this point I understand what he's saying. But then he goes into being judged and judging himself, or I guess the lack of judging of himself that he does. He says it is the Lord who judges. Perhaps (as I write it seems to become more clear) the word judge is talking about the opinion we form about a certain person without even being able to know their heart. On one hand, we may judge someone as "a lost cause"; someone we think would be a waste of time to share Christ with. And on the other hand, we may judge someone as holier than they really are. We do not know the heart.
All of our judgments don't matter. The Lord will come and He will shed light on all the hidden thins in our lives. He will "disclose the purpose of the heart." Only then will we receive our commendation from God. Are you going to be commended? Are you doing something in your life that God can commend you for? Does your life fulfill the great commission?