Luke 9:43

43 And they were all amazed at the greatness of God, and while all are wondering at all things that Jesus did, he said unto 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 And Jesus answering said, `O generation, unstedfast and perverse, till when shall I be with you, and suffer you? bring near hither thy son;'
42 and as he is yet coming near, the demon rent him, and tore [him] sore, and Jesus rebuked the unclean spirit, and healed the youth, and gave him back to his father.
43 And they were all amazed at the greatness of God, and while all are wondering at all things that Jesus did, he said unto his disciples,
44 `Lay ye to your ears these words, for the Son of Man is about to be delivered up to the hands of men.'
45 And they were not knowing this saying, and it was veiled from them, that they might not perceive it, and they were afraid to ask him about this saying.
Young's Literal Translation is in the public domain.