Imagine being a disciple on that boat. In the midst of the storm, unable to make any progress. And here comes Jesus. Just strolling along.
It. was. terrifying.
The part that was terrifying though, wasn’t the storm. It was Jesus coming in the midst of the storm. Like the Demoniac who first asked not to be helped before Jesus had compassion and did so anyway, so the disciples see the person of their rescue and are terrified.
“Take courage” declares Jesus. He’s coming. Terror and all.