The main idea in verses 4-11 of chapter 61 is that we are to produce the fruit of righteousness, praising God for His salvation in Christ. The work of Christ is to transform and restore God’s creation. He is sent to bring righteousness and praise among God’s elect. Jesus is sent to us. He intervenes in our life and establishes us as oaks of righteousness. We are to produce the fruit of righteousness as a result of Jesus being sent.