The sermon on the mount is the heart of what it means to be a Christian disciple. For Bonhoeffer, this includes hungering and thirsting for God's justice. There are some who think Christians should not be concerned with justice, that somehow this is part of some woke liberal agenda. Yet, at the heart of the gospel is God's desire for justice--God's righteousness. To be a Christian means we must be concerned with justice because God is concerned with justice.