Mark 8:12

And He sighing deeply in his spirit, saith, Why doth this generation require a sign? Verily I tell you, There shall no sign be given to this generation.

Mark 7:34

and looking up to heaven He sighed, and saith unto him, Ephphatha, that is, be opened:

Matthew 12:39-40

but He replied and said unto them, This wicked and degenerate race demand a sign; but no sign shall be given them, except that of the prophet Jonah:

Matthew 16:4

This wicked and degenerate race demand a sign; but no sign shall be given them, except that of the prophet Jonah. And so He left them and went away.

Mark 3:5

And when He had looked round upon them with indignation, being grieved at the hardness of their hearts, He saith to the man, Stretch out thine hand: and he stretched it out, and his hand was made as sound as the other.

Mark 6:6

and He was amazed at their unbelief. But he went about all the villages round, teaching.

Mark 9:19

And He answered and said, O unbelieving generation, how long shall I be with you? how long shall I bear with you? bring him to me.

Luke 11:29-30

And when the multitudes were gathering thick together He began to say, This is a wicked generation: they demand a sign, but no sign shall be given them, except that of the prophet Jonah:

Luke 16:29-31

Abraham answered him, They have Moses and the prophets, let them hear them:

Luke 19:41

And as He drew near, beholding the city, He wept over it,

Luke 22:67-70

and said to Him, Art thou the Messiah? tell us. And He said unto them, If I should tell you, ye would not believe:

John 11:33-38

Jesus therefore, when He saw her weeping, and the Jews also weeping, that came with her, groaned in spirit and was troubled.

John 12:37-43

But though He had done so many miracles before their eyes, yet they did not believe on Him:

Treasury of Scripture Knowledge

Summary

And he sighed deeply in his spirit, and saith, Why doth this generation seek after a sign? verily I say unto you, There shall no sign be given unto this generation.

General references

Bible References

He sighed

Mark 3:5
And when He had looked round upon them with indignation, being grieved at the hardness of their hearts, He saith to the man, Stretch out thine hand: and he stretched it out, and his hand was made as sound as the other.
Mark 7:34
and looking up to heaven He sighed, and saith unto him, Ephphatha, that is, be opened:
Mark 9:19
And He answered and said, O unbelieving generation, how long shall I be with you? how long shall I bear with you? bring him to me.
Luke 19:41
And as He drew near, beholding the city, He wept over it,
John 11:33
Jesus therefore, when He saw her weeping, and the Jews also weeping, that came with her, groaned in spirit and was troubled.

Why

Mark 6:6
and He was amazed at their unbelief. But he went about all the villages round, teaching.
Luke 16:29
Abraham answered him, They have Moses and the prophets, let them hear them:
Luke 22:67
and said to Him, Art thou the Messiah? tell us. And He said unto them, If I should tell you, ye would not believe:
John 12:37
But though He had done so many miracles before their eyes, yet they did not believe on Him:

There

Matthew 12:39
but He replied and said unto them, This wicked and degenerate race demand a sign; but no sign shall be given them, except that of the prophet Jonah:
Matthew 16:4
This wicked and degenerate race demand a sign; but no sign shall be given them, except that of the prophet Jonah. And so He left them and went away.
Luke 11:29
And when the multitudes were gathering thick together He began to say, This is a wicked generation: they demand a sign, but no sign shall be given them, except that of the prophet Jonah:

General references

Luke 11:16
and others, to try Him, desired of Him a sign from heaven.