Revelation 1:7

Behold, he is coming with the clouds, and every eye will see him, even those who pierced him; and all tribes of the earth will mourn because of him. Even so. Amen.

Matthew 24:30

Then the sign of the Son of Man will appear in heaven, and then all the tribes of the earth will mourn, and they will see the Son of Man coming on the clouds of heaven with power and great glory.

Matthew 26:75

And Peter remembered the word Jesus had said, "Before the rooster crows, you will deny me three times." So he went out and wept bitterly.

John 1:29

The next day John saw Jesus coming toward him, and said, "Behold, the Lamb of God, who takes away the sin of the world!

John 19:34-37

But one of the soldiers pierced his side with a spear, and immediately blood and water came out.

Acts 2:17

'And in the last days it shall be, God says, that I will pour out my Spirit upon all flesh, and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams;

Acts 2:33

Being therefore exalted at the right hand of God, and having received from the Father the promise of the Holy Spirit, he has poured out this which you see and hear.

Acts 2:37

Now when they heard this they were cut to the heart, and said to Peter and the rest of the apostles, "Brethren, what shall we do?"

Acts 10:45

All the circumcised believers who came with Peter were amazed, because the gift of the Holy Spirit had been poured out even on the Gentiles.

Acts 11:15

As I began to speak, the Holy Spirit fell on them just as on us at the beginning.

Romans 8:15

For you did not receive the spirit of bondage again to fear, but you received the Spirit of sonship by whom we cry out, "Abba, Father."

Romans 8:26

Likewise the Spirit helps us in our weakness; for we do not know what to pray for as we ought, but the Spirit himself intercedes for us with groans that words cannot express.

2 Corinthians 7:9-11

now I rejoice, not because you were made sorry, but because your sorrow led you to repentance; for you became sorrowful as God intended, so that you suffered no loss through us.

Ephesians 6:18

Pray at all times in the Spirit, with all prayer and petition. And with this in view, keep alert with all perseverance and petition for all the saints,

Titus 3:5-6

he saved us, not on the basis of deeds which we have done in righteousness, but because of his own mercy, by the washing of regeneration and renewal in the Holy Spirit,

Hebrews 12:2

fixing our eyes on Jesus, the author and perfecter of our faith, who for the joy that was set before him endured the cross, despising the shame, and sat down at the right hand of the throne of God.

Jude 1:20

But you, beloved, build yourselves up on your most holy faith; pray in the Holy Spirit;

Treasury of Scripture Knowledge

Summary

And I will pour upon the house of David, and upon the inhabitants of Jerusalem, the spirit of grace and of supplications: and they shall look upon me whom they have pierced, and they shall mourn for him, as one mourneth for his only son, and shall be in bitterness for him, as one that is in bitterness for his firstborn.

General references

Bible References

I will pour

Acts 2:17
'And in the last days it shall be, God says, that I will pour out my Spirit upon all flesh, and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams;
Acts 10:45
All the circumcised believers who came with Peter were amazed, because the gift of the Holy Spirit had been poured out even on the Gentiles.
Acts 11:15
As I began to speak, the Holy Spirit fell on them just as on us at the beginning.
Titus 3:5
he saved us, not on the basis of deeds which we have done in righteousness, but because of his own mercy, by the washing of regeneration and renewal in the Holy Spirit,

Of supplications

Romans 8:15
For you did not receive the spirit of bondage again to fear, but you received the Spirit of sonship by whom we cry out, "Abba, Father."
Ephesians 6:18
Pray at all times in the Spirit, with all prayer and petition. And with this in view, keep alert with all perseverance and petition for all the saints,
Jude 1:20
But you, beloved, build yourselves up on your most holy faith; pray in the Holy Spirit;

They shall look

John 1:29
The next day John saw Jesus coming toward him, and said, "Behold, the Lamb of God, who takes away the sin of the world!
John 19:34
But one of the soldiers pierced his side with a spear, and immediately blood and water came out.
Hebrews 12:2
fixing our eyes on Jesus, the author and perfecter of our faith, who for the joy that was set before him endured the cross, despising the shame, and sat down at the right hand of the throne of God.
Revelation 1:7
Behold, he is coming with the clouds, and every eye will see him, even those who pierced him; and all tribes of the earth will mourn because of him. Even so. Amen.

They shall mourn

Matthew 24:30
Then the sign of the Son of Man will appear in heaven, and then all the tribes of the earth will mourn, and they will see the Son of Man coming on the clouds of heaven with power and great glory.
Matthew 26:75
And Peter remembered the word Jesus had said, "Before the rooster crows, you will deny me three times." So he went out and wept bitterly.
Acts 2:37
Now when they heard this they were cut to the heart, and said to Peter and the rest of the apostles, "Brethren, what shall we do?"
2 Corinthians 7:9
now I rejoice, not because you were made sorry, but because your sorrow led you to repentance; for you became sorrowful as God intended, so that you suffered no loss through us.

General references

Matthew 5:4
Blessed are those who mourn, for they shall be comforted.
Romans 11:23
And they also, if they do not persist in unbelief, will be grafted in, for God is able to graft them in again.