Command those things. Teach them.
Don't let anyone look down on you because you are young. Set an example for the believers in what you say and in how you live. Also set an example in how you love and in what you believe. Show the believers how to be pure.
Until I come, spend your time reading Scripture out loud to one another. Spend your time preaching and teaching.
Don't fail to use the gift the Holy Spirit gave you. He gave it to you through a message from God. It was given when the elders placed their hands on you.
Keep on doing those things. Give them your complete attention. Then everyone will see how you are coming along.
Be careful of how you live and what you believe. Never give up. Then you will save yourself and those who hear you.