JESUS SENDS OUT THE TWELVE, Ron Ward
TAKE COURAGE; IT IS I, DON'T BE AFRAID
Passage: Mark 6:45~56  
Key verse: 50
Jesus Walks on the Water(A)(B)
45 Immediately Jesus made his disciples get into the boat(C) and go on ahead of him to Bethsaida,(D) while he dismissed the crowd. 46 After leaving them, he went up on a mountainside to pray.(E)
47 Later that night, the boat was in the middle of the lake, and he was alone on land. 48 He saw the disciples straining at the oars, because the wind was against them. Shortly before dawn he went out to them, walking on the lake. He was about to pass by them, 49 but when they saw him walking on the lake, they thought he was a ghost.(F) They cried out, 50 because they all saw him and were terrified.
Immediately he spoke to them and said, “Take courage! It is I. Don’t be afraid.”(G) 51 Then he climbed into the boat(H) with them, and the wind died down.(I) They were completely amazed, 52 for they had not understood about the loaves; their hearts were hardened.(J)
53 When they had crossed over, they landed at Gennesaret and anchored there.(K) 54 As soon as they got out of the boat, people recognized Jesus. 55 They ran throughout that whole region and carried the sick on mats to wherever they heard he was. 56 And wherever he went—into villages, towns or countryside—they placed the sick in the marketplaces. They begged him to let them touch even the edge of his cloak,(L) and all who touched it were healed.
Cross references
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Source:  BibleGateway
The author notes that the disciples' hearts were hardened because they did not understand about the loaves. Without understanding Jesus' heart and his nature as the Creator God, they thought they saw a ghost when Jesus walked on the lake and came toward them. They had to recognize Jesus and overcome fear. Then they would come to know Jesus and understand his work.
When Jesus got into the boat, the wind stopped, and they sailed peacefully to their next mission field.
Prayer: Father, thank you for revealing who Jesus is to me. Help me to see your power through Jesus so I can take courage.
One Word: Take courage.