Jesus came not to abolish the Old Testament law but to fulfill it (see Matthew 5:17).

And in today's Gospel, He reveals that love - of God and of neighbor - is the fulfillment of the whole of the law (see Romans 13:8-10). Devout Israelites were to keep all 613 commands found in the Bible's first five books. Jesus says today that all these, and all the teachings of the prophets, can be summarized by two verses of this law (see Deuteronomy 6:5; Leviticus 19:18).

The Lord is king over all the earth, as we sing in today's Psalm. Governments rise and fall by His permission, with no authority but that given from above (see John 19:11; Romans 13:1).

In effect, God says to every ruler what he tells King Cyrus in today's First Reading: "I have called you...though you knew me not."

Our Lord's parable in today's Gospel is again a fairly straightforward outline of salvation history. God is the king (see Matthew 5:35), Jesus the bridegroom (see Matthew 9:15), the feast is the salvation and eternal life that Isaiah prophesies in today's First Reading. The Israelites are those first invited to the feast by God's servants, the prophets (see Isaiah 7:25). For refusing repeated invitations and even killing His prophets, Israel has been punished, its city conquered by foreign armies.

In today's Gospel Jesus returns to the Old Testament symbol of the vineyard to teach about Israel, the Church, and the kingdom of God. And the symbolism of today's First Reading and Psalm is readily understood. God is the owner and the house of Israel is the vineyard. A cherished vine, Israel was plucked from Egypt and transplanted in a fertile land specially spaded and prepared by God, hedged about by the city walls of Jerusalem, watched over by the towering Temple.

Echoing the complaint heard in last week's readings, today's first reading again presents protests that God isn't fair. Why does He punish with death one who begins in virtue but falls into iniquity, while granting life to the wicked one who turns from sin? This is the question that Jesus takes up in the parable in today's Gospel.

The first son represents the most heinous sinners of Jesus' day - tax collectors and prostitutes - who by their sin at first refuse to serve in the Lord's vineyard, the kingdom. At the preaching of John the Baptist, they repented and did what is right and just. The second son represents Israel's leaders - who said they would serve God in the vineyard, but refused to believe John when he told them they must produce good fruits as evidence of their repentance (see Matthew 3:8).

The house of Israel is the vine of God -who planted and watered it, preparing the Israelites to bear fruits of righteousness (see Isaiah 5:7; 27:2-5).

Israel failed to yield good fruits and the Lord allowed His vineyard, Israel's kingdom, to be overrun by conquerors (see Psalm 80:9-20). But God promised that one day He would replant His vineyard and its shoots would blossom to the ends of the earth (see Amos 9:15; Hosea 14:5-10).

Mercy and forgiveness should be at the heart of the Christian life.

Yet, as today's First Reading wisely reminds us, often we cherish our wrath, nourish our anger, refuse mercy to those who have done us wrong. Jesus, too, strikes close to home in today's Gospel, with His realistic portrayal of the wicked servant - who won't forgive a fellow servant's debt, even though his own slate has just been wiped clean by their Master.

As Ezekiel is appointed watchman over the house of Israel in today's first Reading, so Jesus in the Gospel today establishes His disciples as guardians of the new Israel of God, the Church (see Galatians 6:16).

He also puts in place procedures for dealing with sin and breaches of the faith, building on models of discipline prescribed by Moses for Israel (see Leviticus 19:17-20; Deuteronomy 19:13). The heads of the new Israel, however, receive extraordinary powers - similar to those given to Peter (see Matthew 16:19). They have the power to bind and loose, to forgive sins and to reconcile sinners in His name (see John 20:21-23).

Today's First Reading catches the prophet Jeremiah in a moment of weakness. His intimate lamentation contains some of the strongest language of doubt found in the Bible. Following God's call, he feels abandoned. Preaching His Word has brought him only derision and violence.

But God does not deceive - and Jeremiah knows this. He tests the just (see Jeremiah 20:11-12), and disciplines His children through their sufferings and trials (see Hebrews 12:5-7).

"Oh, the depth of the riches and wisdom and knowledge of God!" Paul exclaims in today's Epistle. Today's Psalm, too, takes up the triumphant note of joy and thanksgiving. Why? Because in the Gospel, the heavenly Father reveals the mystery of His kingdom to Peter.

With Peter, we rejoice that Jesus is the anointed son promised to David, the one prophesied to build God's temple and reign over an everlasting kingdom (see 2 Samuel 7).

Most of us are the foreigners, the non-Israelites, about whom today's First Reading prophesies.

Coming to worship the God of Israel, we stand in the line of faith epitomized by the Canaanite woman in today's Gospel. Calling to Jesus as Lord and Son of David, this foreigner shows her great faith in God's covenant with Israel.

Jesus tests her faith three times. He refuses to answer her cry. Then, He tells her His mission is only to Israelites. Finally, he uses "dog," an epithet used to disparage non-Israelites (see Matthew 7:6). Yet she persists, believing that He alone offers salvation.

How do we find God in the storms and struggles of our lives, in the trials we encounter in trying to do His will? God commands Elijah in today's First Reading to stand on the mountain and await His passing by. And in the Gospel, Jesus makes the disciples set out across the waters to meet Him. In each case, the Lord makes himself present amid frightening tumult - heavy winds and high waves, fire and earthquakes. Elijah hides his face. Perhaps he remembers Moses, who met God on the same mountain, also amid fire, thunder, and smoke (see Deuteronomy 4:10-15; Exodus 19:17-19). God told Moses no one could see His face and live, and He sheltered Moses in the hollow of a rock, as He shelters Elijah in a cave (see Exodus 33:18-23).

High on the holy mountain in today’s Gospel, the true identity of Jesus is fully revealed in His transfiguration. Standing between Moses and the prophet Elijah, Jesus is the bridge that joins the Law of Moses to the prophets and psalms (see Luke 24:24–27). As Moses did, Jesus climbs a mountain with three named friends and beholds God’s glory in a cloud (see Exodus 24:1, 9, 15). As Elijah did, He hears God’s voice on the mountain (see 1 Kings 19:8–19).