These were the very waters that tossed and buffeted the disciples boat in the middle of a storm. Then Jesus walks across the waters to them.
In Matthew 14: 22-33
We read that Jesus Christ said to His disciples “It is I, Do not be afraid”
When He says “It is I”
If you go back to the koine greek, He says Ἐγώ εἰμι, or Egō eimi which means “I am” He told them “I am, do not be afraid”
What a wonderful reassurance that He gives them in a time of distress. It was out on this sea that they were terrified that night. When the waves came up He approached them and they saw him. And He calmed the seas.