But overhearing what they said, Jesus said to the ruler of the synagogue, “Do not fear, only believe.”
Mark 5:36. Fear not, only believe. The message about her death had induced despair: for he had asked nothing from Christ but relief to the diseased young woman. Christ therefore bids him take care lest, by fear or distrust, he shut out that grace, to which death will be no hindrance.
Diseases and deaths came into the world by the sin and disobedience of the first Adam; but by the grace of the second Adam both are conquered. Christ, having healed an incurable disease, here goes on to triumph over death, as in the beginning of the chapter he had triumphed over an outrageous devil. I.
Commenting on Mark 5:35-43
As soon as Jesus had heard the word that was spoken,.... By those that came from the ruler's house; as that his daughter was dead, and it was to no purpose to give him any further trouble, since all hope of recovery was now gone: he saith unto the ruler of the synagogue; who was overwhelmed with trouble, and quite dispirited, and ready to swoon...