Twenty-sixth Sunday in Ordinary Time – Year A (2026)
Sunday, October 4, 2026
Artificial intelligence systems (AI) are designed by their creators to benefit humanity, but major companies are now voicing concerns about the dangers their own AI models pose. What will this mean for the world, and what will be the fruit of their labor? Today’s readings pose a similar question through an ancient image. God tends a vineyard and expects it to bear good fruit, but what happens when what has been entrusted to human hands yields something else?
The vineyard in today’s Old Testament reading is not neglected. Its owner has chosen fertile ground, excavated it, cleared stones, built a watchtower, and prepared a winepress. Despite diligent stewardship, it yielded an unexpected crop: “rotten grapes.” The owner, as if in a courtroom scene, asks: “Now, inhabitants of Jerusalem, people of Judah, judge between me and my vineyard: What more could be done for my vineyard that I did not do?” (Isaiah 5:3-4). The owner acted on his judgment by pruning, hoeing, and withholding rain so the vineyard would wither and die. This is a stark message that the people of Israel needed to receive. If they fail to bear fruit, they will face death and destruction. This serves as a serious warning to reconcile with God and with each other, illustrated through the vineyard metaphor.
As with the Gospel readings of the past two Sundays, today’s Gospel continues from Matthew 21. The chapter begins with Jesus entering Jerusalem to the crowds’ acclaim, then going to the Temple, where He drove out the money changers and healed the blind and lame. The next morning, He spoke of a fig tree that had leaves but no fruit and cursed it. When He returned to the Temple, the chief priests and elders challenged His authority. Jesus answered with the parable of the two sons, exposing the gap between claiming to obey God and actually doing His will. Then, in today’s selection, He told them the parable of the tenants. The parable brings together fruitfulness, responsibility, and the leaders’ response to God’s messengers, and now to His Son. This sequence in Matthew 21 anticipates the events of Holy Week, when Jesus is put to death. The tenants in today’s parable imagine that killing the heir will make the inheritance theirs. They act as if stewardship were ownership, as if what has been entrusted to them belonged finally to them. Jesus adds the image of a rejected stone that becomes the cornerstone. The stone is Christ, rejected in His Passion yet made the cornerstone of God’s work. The parable’s point is the accountability of those entrusted with God’s vineyard and the necessity that God’s people bear its fruit.
These readings from Isaiah and the Gospel of Matthew press us as the Church, a parish, a Christian group, or a household to consider the kind of fruit our shared life is producing. Our participation, activities, and good intentions matter, but the true measure is more demanding. The vineyard belongs to God and our place in it is a trust, not a claim of ownership or an opportunity to accumulate riches. Its harvest is measured by how our lives and actions bring forth the care, truth, and justice for which it was planted.
Go in Peace to Love and Serve the Lord.