1. Present yourself to God as one approved (14-19)
Paul had much advice to give to young Timothy. God's servants should avoid quarreling, godless chatter. They must turn away from wickedness and hold on to the truth of the gospel of the resurrection. Most of all God's servants should know that they are approved by God. Although we are all sinners (even God's servants!), God cleanses us through the blood of Jesus Christ. We can stand as one approved by Him. Then we have no reason to be ashamed of anything. We should not seek to be approved by others. We should seek to be approved by God.
2. Gold and silver; wood and clay (20-26)
Gold and silver represent what is godly. Wood and clay represent what is ungodly. When God's servants are cleansed of what is ungodly, fleeing our evil desires, and pursue righteousness, faith, love and peace, we are useful to God. God made us for noble purposes. We are made to be holy! God made us to be useful to Him!