Nice write up was blessed. In verse 3 God demands that we listen obediently, Do what he commands us to do so we will have a Good life, a life of abundance just as he promised the children of Israel.
In verse 18-19, When you Do what is right, and what is good in the sight of God, he will give you a good life, he will cast all your enemies from before you and he will Fulfil his promises to you because you have obeyed him.