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 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).