Today’s gospel is challenging message for the people of Israel and for us. Jesus wanted to warn them about the necessity to bear fruits in the Christian life.  As Chosen people, they were so blessed by God in many ways: God revealed to them his love, his presence.  God gave them protection.  He sent  them prophets to proclaim the good news.  In return, God expected from them fruits of the righteousness, justice, mercy and love.  But the people refused to listen to the prophets and produced the bitter grapes of injustice, immorality and idolatry.  They persecuted and killed the prophets.  As a final attempt, God sent his Son who came to live among them.  What a blessing, but the wicked tenants, the people of Israel rejected Him. They crucified Him and continued to lead a life of disobedience.  Hence, God’s vineyard was taken away from Chosen people and was given to the gentile Christians, who were expected to produce fruit of righteousness.  Now, the Lord’s vineyard at present is the Church, and we Christians are the tenants from whom God expects fruits of righteousness.  The parable warns us  to reform our lives, to become productive.  God has sent to us many prophets to encourage us, messengers to teach us how to love, how to be generous, how to pray, how to welcome the strangers, how to open our hearts to receive God’s grace.  In return, God expects us to be grateful for all the blessings we have received and also wants us to bear fruits of love, generosity, peace, justice. We need to ask ourselves; Have we produced the good fruits of justice and love? Are we growing in spiritual life, or do we consider ourselves as owners of the vineyard?  How do we treat the messengers, friends, brothers and sisters, prophets, those who challenge us?  Are we ungrateful like the people of Israel when we show our cold indifference to God and excessive attachment to worldly goods?  The prayer of our liturgy today is that we will receive the grace to open our hearts to the prophetic voice of Jesus and become a people who produce abundant good fruit in accord with God’s will.