The sermon on the mount (Matthew 5-7) concludes with the parable the wise and foolish builders. The wise builder builds on a rock for the foundation of his house. This builder who builds upon a firm foundation is the one who hears Jesus’ teaching and practices what Jesus teaches. Putting Jesus’ teaching into practice is to build upon a solid foundation. The apostle Paul in his letters use this image of building upon a foundation, which is Christ. However, we tend to treat the sermon on the mount as a structure that we are to live in and which we must remodel or deconstruct. The parable suggests that practicing Jesus’ teaching is more like building a structure than inhabiting something already in existence. The sermon on the mount provides a foundation for living in a way that builds upon Jesus Christ and Jesus’ teaching.
How is Jesus Christ and the teachings in the sermon on the Mount foundation? Are we building upon this foundation? What does it mean to build upon Jesus and these teachings of Christ.?
Taking Jesus Christ and the Sermon on the Mount as foundation means reading the Sermon on the mount not so much as rules to be applied in all situations, but teaching that gives us a dynamic life giving way of being. In hearing and studying the sermon on the mount we become familiar with this way of being.
Some aspects of this we won’t go into here: The Sermon on the mount is itself a summary of Jesus’ interpretation of the Torah. Jesus is describing himself in his own teaching, Jesus is the way and fulfillment of the Torah. As the Word made flesh Jesus is the Torah interpreting Torah.
Jesus’ teaching is a whole not discrete isolated instructions. Only as a whole are they the firm foundation to be built upon. Anyone saying or teaching isn’t isolated and discrete able to stand on its own, rather Jesus’ teachings provide the interlocking basis for life and for our building upon this foundation. Take for instance the teaching of turning the other cheek this instruction is bound up with Jesus teaching on hate and murder, with the charge to love enemies, the charge to not worry, the blessing of those who seek after justice and righteousness etc… Seeing this as foundation and way of being means that every part is part of the other unable to be removed and atomized, and picked over for its supposed utility in following Jesus.
Once we accept Jesus and Jesus instruction as foundation we are not meant to build upon this foundation alone. This way of being isn’t an individualistic path anymore then the teachings of Jesus are individual disconnected rules to be applied by our own wisdom. We are to build upon this foundation with others, namely other baptized members of the Church.
This is Christ’s way of being, the very nature of the church. We can’t answer how we are to live out this way and build upon the foundation individually. We can do this only as the body of Christ, only in conversation with others, both those who are living and those who have lived upon the foundation out in the past: Like St. Francis and St. Benedict and the Benedictines, and the first monastics like St Anthony of Egypt. The lives of the Saints show us how others have lived upon this foundation. This is a spiritual and Eucharistic practice of becoming Christ, it requires regularly taking in Christ and being with other’s who are baptized members of the body of Christ, encouraging each other to practice and build upon Christ and Christ’s teachings.
A note on false prophets and those who teach but don’t live on the foundation Christ:
If you still have misgivings about the Sermon on the mount or some of Jesus’ sayings, because some interpretations seem to support the status quo, or oppressors or the wealthy remember Jesus warns against those who would twist his words for their own ends, false prophets and those who would claim to speak for Jesus but do works that have nothing to do with the Jesus or Jesus’ way of being.
Jesus wraps up the Sermon on the Mount with warnings against false prophets and those who say “Lord, Lod” and claimed to do great works in Christ’s name but who don’t do the will of God as found in Jesus’s teachings. The harmful interpretations of the sermon on the mount can come back to these false teachers and false disciples. We are called to watch out for those who distort the foundation or who teach but do not live upon the foundation of Christ. But they don’t alter the solid foundation which is Christ. Turn aside from those false prophets, and those who claim knowledge but know nothing of Christ. Do not let them shake your confidence in this foundation and the life-giving way offered by Christ.