But the Bible says is clever to be good. The ultimate aim of wisdom is not peace but righteousness. By changing through God's help. And one of those helps is the fellowship of God's people. God's love and acceptance of me and fellow Christians' love and acceptance of me are the soil in which I can change.
Peacemakers raise a harvest of righteousness.
Competitive point-scorers don't enable change. Church should be a change-enabling community. We all enter it by grace, and all need the same help to achieve the harvest of righteousness. We will need smaller groups where we can know each other. Our small groups should reflect verse 18.