Mark 6:50-52

Jesus walking on the sea: [...] V. 50. for they all saw Him and were troubled. And immediately He talked with them and saith unto them, Be of good cheer; it is I; be not afraid. V. 51. And He went up unto them into the ship ; and the wind ceased. And they were sore amazed in themselves beyond measure, and wondered. V. 52. For they considered not the miracle of the loaves; for their heart was hardened.

Jesus' voice stayed the panic and slowly brought confidence into their hearts. He then climbed over the side of the boat into their midst, whereupon the wind immediately stopped.

The effect of this double miracle on the disciples, wrought up as they had been by their fear, was such as to bring them almost out of their senses for astonishment. For, as the evangelist here confesses, doubtless at the suggestion of Peter, the miracle of the loaves had not been understood by them, it had not entered into their hearts, its meaning had escaped them, and their hearts were still far from being in a condition to accept, at their right value, the miracles of the Lord.

In like manner, the great deeds of the Lord which pass review before us in Scriptures often do not make the impression upon our hearts that they should; but the Savior has much patience with us, renewing and repeating His teaching until we understand.