16 When evening came, his disciples went down to the lake, 17 where they got into a boat and set off across the lake for Capernaum. By now it was dark, and Jesus had not yet joined them. 18 A strong wind was blowing and the waters grew rough. 19 When they had rowed about three or four miles,b they saw Jesus approaching the boat, walking on the water;j and they were frightened. 20 But he said to them, “It is I; don’t be afraid.”k 21 Then they were willing to take him into the boat, and immediately the boat reached the shore where they were heading.