Luke 2:35

(And also a spear shall pass through the soul of thyself,) so that the reasonings from many hearts might be revealed.

John 19:25

And by the cross of Jesus stood his mother, and his mother's sister, Mary of Cleophas, and Mary Magdalene.

Deuteronomy 8:2

And remember thou all the way which Jehovah thy God caused thee to go this forty years in the desert in order to humble thee, to try thee, to know what is in thy heart, whether thou shalt watch his commands or not

Judges 5:15-16

And the chiefs in Issachar with Deborah; And Issachar, so Barak: In the valley sent he, upon his feet. In the divisions of Reuben, Great decrees of heart

Psalm 42:10

With a breaking of my bones mine enemies reproached me, in their saying all the day, Where their God?

Matthew 12:24-35

But the Pharisees, having heard, said, He casts not out demons, but by Beelzebub, ruler of demons.

Luke 16:14-15

And the Pharisees heard all these things, being avaricious: and they derided him.

John 8:42-47

Then said Jesus to them, If God were your Father, ye had loved me: for I went forth from God, and came; for I have not come of myself, but he sent me.

John 15:22-24

If I had not come and spoken to them, they had not sin and now they have no pretext for their sin.

Acts 8:21-23

No portion is to thee, nor lot, in this word: for thy heart is not upright before God.

1 Corinthians 11:19

For there must be also sects among you, that the tried might be made manifest among you.

1 John 2:19

They went out from us, but they were not of us; for if they had been of us, they had remained with us, but, that they might be manifested, that they are not all of us.

Treasury of Scripture Knowledge

Summary

(Yea, a sword shall pierce through thy own soul also,) that the thoughts of many hearts may be revealed.

Bible References

A sword

Psalm 42:10
With a breaking of my bones mine enemies reproached me, in their saying all the day, Where their God?
John 19:25
And by the cross of Jesus stood his mother, and his mother's sister, Mary of Cleophas, and Mary Magdalene.

That

Luke 16:14
And the Pharisees heard all these things, being avaricious: and they derided him.
Deuteronomy 8:2
And remember thou all the way which Jehovah thy God caused thee to go this forty years in the desert in order to humble thee, to try thee, to know what is in thy heart, whether thou shalt watch his commands or not
Judges 5:15
And the chiefs in Issachar with Deborah; And Issachar, so Barak: In the valley sent he, upon his feet. In the divisions of Reuben, Great decrees of heart
Matthew 12:24
But the Pharisees, having heard, said, He casts not out demons, but by Beelzebub, ruler of demons.
John 8:42
Then said Jesus to them, If God were your Father, ye had loved me: for I went forth from God, and came; for I have not come of myself, but he sent me.
John 15:22
If I had not come and spoken to them, they had not sin and now they have no pretext for their sin.
Acts 8:21
No portion is to thee, nor lot, in this word: for thy heart is not upright before God.
1 Corinthians 11:19
For there must be also sects among you, that the tried might be made manifest among you.
1 John 2:19
They went out from us, but they were not of us; for if they had been of us, they had remained with us, but, that they might be manifested, that they are not all of us.