Mark 4:39-41 NIV

39 He got up, rebuked the wind and said to the waves, "Quiet! Be still!" Then the wind died down and it was completely calm.
40 He said to his disciples, "Why are you so afraid? Do you still have no faith?"1

References for Mark 4:40

41 They were terrified and asked each other, "Who is this? Even the wind and the waves obey him!"