The Fifth Sunday of Ordinary Time continues the Sermon on the Mount with Jesus' powerful teaching about salt and light. These simple, everyday images carry profound meaning for Christian discipleship and mission in the world.
Jesus speaks to his disciples with startling directness:
"'You are the salt of the earth, but if the salt has lost its flavor, with what will it be salted? It is then good for nothing, but to be cast out and trodden under the feet of men." — Matthew 5:13
In the ancient world, salt was precious—used for preserving food, enhancing flavor, and even as currency (the word "salary" comes from salt). Jesus tells his followers that they serve this function in the world: preserving it from moral decay, adding flavor to existence, and bringing out the best in human life.
Immediately following the salt metaphor, Jesus adds another:
"'You are the light of the world. A city located on a hill can’t be hidden. Neither do you light a lamp and put it under a measuring basket, but on a stand; and it shines to all who are in the house." — Matthew 5:14-15
Light illuminates, guides, and exposes what is hidden in darkness. Jesus himself is the Light of the World, but here he shares that identity with his disciples. We are called to shine with borrowed light, reflecting the radiance of Christ to those around us.
The practical application is clear:
"Even so, let your light shine before men, that they may see your good works and glorify your Father who is in heaven." — Matthew 5:16
Notice that the purpose is not self-promotion but giving glory to God. Our good works are meant to point beyond themselves to the One who makes them possible.
These images challenge any temptation to keep faith private or hidden. Salt must make contact to preserve; light must be visible to illuminate. Christians are called to engaged presence in the world—not withdrawal into safe enclaves but active witness through transformed lives and loving deeds.