Matthew 14:27-30

27But immediately Jesus spoke to them, saying, “Cheer up! It is I! Don’t be afraid.” 28Peter answered him and said, “Lord, if it is you, command me to come to you on the waters.” 29He said, “Come!” Peter stepped down from the boat, and walked on the waters to come to Jesus. 30But when he saw that the wind was strong, he was afraid, and beginning to sink, he cried out, saying, “Lord, save me!” Matthew 14:27-30