Matthew is the Gospel that most deliberately ties Jesus to the Old Testament promise of the Messiah, making it essential for understanding how the New Testament claims Jesus completes what Israel's story was building toward. It is the only Gospel that explicitly teaches about the church, making it foundational for ecclesiology and disciple-making. Matthew's extended teaching blocks, particularly the Sermon on the Mount, establish the ethical vision of the kingdom and the kind of righteousness Jesus demands, which directly shapes how Christians understand obedience and the law's place in the new covenant. For the contemporary church, Matthew refuses the split between Jesus' words and works, His authority and mercy, His demand for righteousness and His welcome of sinners, forcing modern disciples to hold together what we often separate.