Luke 9:43

43 And all were astounded at the greatness of God. While everyone was amazed at all that he was doing, he said to his disciples,

Luke 9:43 Meaning and Commentary

Luke 9:43

And they were all amazed at the mighty power of God
Or at "the greatness", or "majesty of God"; which was displayed in this cure: for the great power of God was manifestly seen in it, to the astonishment of the disciples, who could not cure this child, and of the parent and friends of it, and of the whole multitude: and to the confusion of the Scribes and Pharisees:

but while they wondered every one, at all things which Jesus did;
and were applauding him for them, and speaking in his praise on account of them:

he said unto his disciples;
privately, when they were alone together, the following words, that he might not seem to be lifted up with the praise of men; and also to show their inconstancy, that those who, now admired him, would one day crucify him; and to take off the thoughts of the disciples from a temporal kingdom and glory, they were so much in expectation of, and which every miracle of Christ, and the applause he got thereby among men, strengthened them in.

Luke 9:43 In-Context

41 Jesus answered, "You faithless and perverse generation, how much longer must I be with you and bear with you? Bring your son here."
42 While he was coming, the demon dashed him to the ground in convulsions. But Jesus rebuked the unclean spirit, healed the boy, and gave him back to his father.
43 And all were astounded at the greatness of God. While everyone was amazed at all that he was doing, he said to his disciples,
44 "Let these words sink into your ears: The Son of Man is going to be betrayed into human hands."
45 But they did not understand this saying; its meaning was concealed from them, so that they could not perceive it. And they were afraid to ask him about this saying.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.