A, Post-Pentecost 11 Proper 14 - Psalm 18:2, Matthew 14:22-33 Ballast For The Boat

Psalm 18:2 (ESV) The Lord is my rock and my fortress and my deliverer, my God, my rock, in whom I take refuge, my shield, and the horn of my salvation, my stronghold.

Matthew 14:28–31 (ESV) And Peter answered him, “Lord, if it is you, command me to come to you on the water.” He said, “Come.” So Peter got out of the boat and walked on the water and came to Jesus. But when he saw the wind, he was afraid, and beginning to sink he cried out, “Lord, save me.” Jesus immediately reached out his hand and took hold of him, saying to him, “O you of little faith, why did you doubt?”

It seems that regardless of Jesus being in the boat or out of the boat, His disciples—some of whom were fishermen—struggled with the fickle nature of sailing on the Sea of Galilee, especially when the going was rough. 

In Matthew eight, Jesus sleeps on a cushion in the boat as the waters rage and threaten to topple the tiny craft, throwing the disciples into the sea. They wake Jesus, crying out to Him, “‘Save us, Lord; we are perishing.’ And He said to them, ‘Why are you afraid, O you of little faith?’ Then He rose and rebuked the winds and the sea, and there was a great calm.” (Matthew 8:25–26 ESV)

Now today, we hear the second seafaring trial of the disciples, who struggle against the wind and the waves, having a tough time traversing the sea after Jesus sends them away while He dismisses the five thousand after feeding them with five loaves and two fish. There alone, He goes to a mountain to pray throughout the night.

We are not told what He prays, but His act of prayer is a reliance on the Heavenly Father’s providence and love. It is an act of complete faith as Jesus allows the Holy Spirit to have full control of His humanity to do the deeds of ministry in the desolate places amongst humanity, which would lead Him to the desolation of the cross.

His prayers would have been for His disciples, the crowds He fed, and for the faithfulness of His walk to the cross to fulfil all righteousness for humanity’s desolation. To be the Christ of God, Jesus looked to God the Father as His Rock.

When we consider the Psalms as the heart of Jesus, “the Word made Flesh”, we can trust His prayers are the fulfilment of the Psalms.  Therefore, the Psalm today embodies the faithfulness of Jesus’ relationship with the Father as He moved in His being on the way to the cross.  We hear, “The Lord is my rock and my fortress and my deliverer, my God, my rock, in whom I take refuge, my shield, and the horn of my salvation, my stronghold.” (Psalm 18:2 ESV)

Within Jesus’ humanity, He bears the ballast of God, the Rock, His refuge, shield, horn of salvation, and stronghold.

Having prayed throughout the night, Jesus walks out to the disciples battling in the boat. Last time, the disciples feared the wild sea as Jesus slept in the boat, but now they fear what appears to be a phantom walking on water towards them. But it’s no watery ghost coming to kill them; it’s Jesus, who had sent them across the lake after feeding the five thousand. He immediately calms them, saying, “Take heart; it is I. Do not be afraid.” (Matthew 14:27 ESV)

This is where Peter pipes up, and we hear him question Jesus, “‘Lord, if it is You, command me to come to You on the water.’ He said, ‘Come.’ So Peter got out of the boat and walked on the water and came to Jesus. But when he saw the wind, he was afraid, and beginning to sink, he cried out, ‘Lord, save me.’ Jesus immediately reached out His hand and took hold of him, saying to him, ‘O you of little faith, why did you doubt?’” (Matthew 14:28–31 ESV)

Peter sank like a rock! But at first, he walked with Jesus. Invited by Jesus’ simple command to “come”, he puts all fears aside and follows Jesus onto the water. But once on the water, the eyes took over from the ears, and Peter begins to sink! Human reason, understanding, and ability quickly replace the power of Jesus’ Word to “come”, and Peter sank like a stone!

What was going on here? He walks on water with Jesus. He believes Jesus; then he doesn’t. Peter has little faith. This little faith is like the seed Jesus speaks of in the parable of the sower, cast on the road, amongst rocks, and amongst thorns. One second Peter has faith to get out of the boat, and then the next, this faith is lacking. When the time of testing arrived, Jesus’ command to “come” was stolen away. His faith only has shallow roots and dies under duress when testing comes. Faith to “walk with Jesus” is choked by worry.

Jesus questions Peter’s little faith, asking, “why did you doubt?” (Matthew 14:31c ESV) James explains that doubt as being two-faced, saying, “…ask in faith, with no doubting, for the one who doubts is like a wave of the sea that is driven and tossed by the wind. For that person must not suppose that he will receive anything from the Lord; he is a double-minded man, unstable in all his ways.” (James 1:6–8 ESV)

Peter, in his double-mindedness, saw the waves of the sea. His faith failed as the wind made him freeze with fear. Alas, without faith in the Word from God, Peter saw himself sinking like a stone. In the face of a watery death, Peter cries out to the Rock of his salvation, Jesus Christ, and Jesus saves him, and they get into the boat. The wind stops, and all in the boat who once feared the image walking to them on the water worship Him as truly the Son of God!

This is the second time in Matthew’s Gospel that Jesus is named as the Son of God. The first time was when the demons in Legion saw Jesus approaching to cast them out of him and into a herd of pigs, which, incidentally, ran down the hill and drowned themselves in the same sea where the disciples received Jesus into the boat and worshipped Him as the Son of God.

The disciples witnessed the Son of God coming to them across the chaos of the sea, and it was Jesus who sent them there. We, the church of God, are sailing through turbid times of turmoil. The church is the lifeboat of God, sent by God to sail in good weather and bad. Sometimes it seems that Jesus is not with us in the boat, or that He is asleep and unaware of our plight in the storms of life. Yet He is acutely aware of our situation, having faced death and defeated it.

Jesus is the ballast in our boat of the church; He keeps us sailing upright in the worst storms that come our way in the world. We don’t have to find Him since He sent us out to carry His message to “the other side”. But we’re never alone; He is our ballast in the boat. He abides with us in our tribulation, even when we don’t recognise Him. Sometimes, you and I are called to “come”, to step out of our comfort zone. But we’re called to remember that the church is only where Jesus is; He is our boat and ballast.

Just as God the Father was Jesus’ Rock while He walked to the cross, we too can look to Jesus as our Rock or Ballast of Salvation — our Boat of Salvation. Jesus is our Lord and Saviour; He is our God who saves, together with the Father and the Holy Spirit. God the Father, Son, and Holy Spirit want you to glorify Them and declare of Them, “The Lord is my rock and my fortress and my deliverer, my God, my rock, in whom I take refuge, my shield, and the horn of my salvation, my stronghold.” Amen.

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Sermon Summary

This sermon reflects on Matthew 14:28–31 through the image of Christ as the ballast, boat, and Rock of salvation. The disciples, battered by wind and waves, encounter Jesus walking across the chaos of the sea. Peter initially trusts Jesus’ command to “come”, but when his attention shifts from Christ’s Word to the surrounding storm, fear overtakes faith and he begins to sink. Yet even in Peter’s little faith and doubt, Jesus immediately reaches out His hand and saves him.

The sermon connects Peter’s struggle with the life of the church today. Like the disciples, believers and congregations are sent by Christ into troubled waters, where fear, uncertainty, and human reason may threaten to overwhelm faith. Nevertheless, Jesus is never absent. He is the One who sends His church, sustains His people, abides with them in tribulation, and saves them from sinking. As God the Father was the Rock and refuge of Jesus on His way to the cross, so Jesus Christ is our Rock, refuge, ballast, and stronghold. Therefore, the church may confess with Psalm 18:2 that the Lord is our rock, fortress, deliverer, shield, salvation, and stronghold.

Reflection Questions

1. Where in your life do you feel as though the wind and waves are against you?
2. What voices, fears, or circumstances most often draw your eyes away from Jesus’ Word?
3. How does Peter’s cry, “Lord, save me”, encourage you when your own faith feels little or weak?
4. What does it mean for you to trust Jesus as your Rock, ballast, refuge, and stronghold?
5. How might your congregation remember that Jesus is present with His church even when He seems hidden or silent?
6. Where might Jesus be calling you to “come” — to step out in faith beyond comfort, control, or human reason?
7. How does the confession of Psalm 18:2 shape the way you pray during testing, fear, or doubt?