And in the fourth watch of the night he came to them, walking on the sea. But when the disciples saw him walking on the sea, they were terrified, and said, “It is a ghost!” and they cried out in fear. But immediately Jesus spoke to them, saying, “Take heart; it is I. Do not be afraid.”
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?” And when they got into the boat, the wind ceased. And those in the boat worshiped him, saying,“Truly you are the Son of God.” (Matthew 14:24-33)
This is often a blight on Peter’s reputation, because he doubted. And in fact, the Savior calls him one “of little faith“. He did indeed falter in trusting Jesus.
But to his credit, he had the faith to step out of the boat in the first place. And when his faith faltered, he still showed his trust in Jesus by crying out, “Lord, save me.“
Later, Peter’s faith would falter again, and on the day of Jesus’s crucifixion, he denied the Lord three times. And yet again, the Lord preserved Peter’s faith, restoring him, and making him an important pillar of the church.
O Christian, pray that your trust in the Lord would be strong. And when you fail, cry out to Him. He will preserve you.