Timothy should be a good leader in the
Some Christian leaders had prayed for Timothy before Paul wrote this letter. See 1 Timothy 4:14. They had spoken words from God to Timothy. Perhaps God had said that he would make Timothy strong. Timothy needed to be strong so that he could be a Christian leader.
Timothy did not have to fight anyone. Paul did not mean that. He meant that Timothy had to be strong and brave, like a soldier. Then he could teach the true Christian message.
Paul had told Hymenaeus and Alexander to leave the church. He wanted them to become ashamed of themselves. He hoped that they would learn to obey God.