The disciples were alone in the boat during a storm--as the church of Matthew's time must have thought itself on occasion. They didn't recognize Jesus until he called out to them, "It is I." Many commentators consider this reassuring statement to be an allusion to the Scriptural name of the Lord, "I Am."
Peter tests Jesus, demands a miracle from him, "If you are who you say you are, command me to come to you on the water." Apparently Jesus' words have been enough to give Peter confidence because he can walk on the water. For a few steps. Then Peter notices once more what had been so frightening before--the wind. He falters, he can no longer do what he had just been able to do. He begins to sink.
Peter calls for help. Jesus gives it.
Sometimes, we can see God's presence; sometimes, not so much. Sometimes, we make a good beginning, but we fail to connect to it a good ending.
Sometimes we call for help.
24they saw the deeds of the Lord,
his wondrous works in the deep.
25For he commanded and raised the stormy wind,
which lifted up the waves of the sea.
26They mounted up to heaven, they went down to the depths;
their courage melted away in their calamity;
27they reeled and staggered like drunkards,
and were at their wits’ end.
28Then they cried to the Lord in their trouble,
and he brought them out from their distress;
29he made the storm be still,
and the waves of the sea were hushed.
30Then they were glad because they had quiet,
and he brought them to their desired haven.
31Let them thank the Lord for his steadfast love,
for his wonderful works to humankind.