Matthew 14:29 YLT

²⁷  and immediately Jesus spake to them, saying, 'Be of good courage, I am 'he', be not afraid.'

²⁸  And Peter answering him said, 'Sir, if it is thou, bid me come to thee upon the waters;'

²⁹  and he said, 'Come;' and having gone down from the boat, Peter walked upon the waters to come unto Jesus,

³⁰  but seeing the wind vehement, he was afraid, and having begun to sink, he cried out, saying, 'Sir, save me.'

³¹  And immediately Jesus, having stretched forth the hand, laid hold of him, and saith to him, 'Little faith! for what didst thou waver?'