Isaiah 63:17

Why, O Lord, do You cause us to stray from Your ways
And harden our heart from fearing You?
Return for the sake of Your servants, the tribes of Your heritage.

Numbers 10:36

When it came to rest, he said,
Return, O Lord,
To the myriad thousands of Israel.”

Psalm 90:13

Do return, O Lord; how long will it be?
And be sorry for Your servants.

Isaiah 6:10

Render the hearts of this people insensitive,
Their ears dull,
And their eyes dim,
Otherwise they might see with their eyes,
Hear with their ears,
Understand with their hearts,
And return and be healed.”

Ezekiel 14:7-9

For anyone of the house of Israel or of the immigrants who stay in Israel who separates himself from Me, sets up his idols in his heart, puts right before his face the stumbling block of his iniquity, and then comes to the prophet to inquire of Me for himself, I the Lord will be brought to answer him in My own person.

John 12:40

He has blinded their eyes and He hardened their heart, so that they would not see with their eyes and perceive with their heart, and be converted and I heal them.”

Deuteronomy 2:30

But Sihon king of Heshbon was not willing for us to pass through his land; for the Lord your God hardened his spirit and made his heart obstinate, in order to deliver him into your hand, as he is today.

Joshua 11:20

For it was of the Lord to harden their hearts, to meet Israel in battle in order that he might utterly destroy them, that they might receive no mercy, but that he might destroy them, just as the Lord had commanded Moses.

Psalm 74:1-2

A Maskil of Asaph.
O God, why have You rejected us forever?
Why does Your anger smoke against the sheep of Your pasture?

Psalm 80:14

O God of hosts, turn again now, we beseech You;
Look down from heaven and see, and take care of this vine,

Psalm 119:10

With all my heart I have sought You;
Do not let me wander from Your commandments.

Psalm 119:36

Incline my heart to Your testimonies
And not to dishonest gain.

Psalm 141:4

Do not incline my heart to any evil thing,
To practice deeds of wickedness
With men who do iniquity;
And do not let me eat of their delicacies.

Isaiah 29:13

Then the Lord said,
“Because this people draw near with their words
And honor Me with their lip service,
But they remove their hearts far from Me,
And their reverence for Me consists of tradition learned by rote,

Zechariah 1:12

Then the angel of the Lord said, “O Lord of hosts, how long will You have no compassion for Jerusalem and the cities of Judah, with which You have been indignant these seventy years?”

Romans 9:18-20

So then He has mercy on whom He desires, and He hardens whom He desires.

2 Thessalonians 2:11-12

For this reason God will send upon them a deluding influence so that they will believe what is false,

Treasury of Scripture Knowledge

Summary

O LORD, why hast thou made us to err from thy ways, and hardened our heart from thy fear? Return for thy servants' sake, the tribes of thine inheritance.

Bible References

Why

Psalm 119:10
With all my heart I have sought You;
Do not let me wander from Your commandments.
Psalm 141:4
Do not incline my heart to any evil thing,
To practice deeds of wickedness
With men who do iniquity;
And do not let me eat of their delicacies.
Ezekiel 14:7
For anyone of the house of Israel or of the immigrants who stay in Israel who separates himself from Me, sets up his idols in his heart, puts right before his face the stumbling block of his iniquity, and then comes to the prophet to inquire of Me for himself, I the Lord will be brought to answer him in My own person.
2 Thessalonians 2:11
For this reason God will send upon them a deluding influence so that they will believe what is false,

And hardened

Isaiah 6:10
Render the hearts of this people insensitive,
Their ears dull,
And their eyes dim,
Otherwise they might see with their eyes,
Hear with their ears,
Understand with their hearts,
And return and be healed.”
Deuteronomy 2:30
But Sihon king of Heshbon was not willing for us to pass through his land; for the Lord your God hardened his spirit and made his heart obstinate, in order to deliver him into your hand, as he is today.
Joshua 11:20
For it was of the Lord to harden their hearts, to meet Israel in battle in order that he might utterly destroy them, that they might receive no mercy, but that he might destroy them, just as the Lord had commanded Moses.
John 12:40
He has blinded their eyes and He hardened their heart, so that they would not see with their eyes and perceive with their heart, and be converted and I heal them.”
Romans 9:18
So then He has mercy on whom He desires, and He hardens whom He desires.

Return

Numbers 10:36
When it came to rest, he said,
Return, O Lord,
To the myriad thousands of Israel.”
Psalm 74:1
A Maskil of Asaph.
O God, why have You rejected us forever?
Why does Your anger smoke against the sheep of Your pasture?
Psalm 80:14
O God of hosts, turn again now, we beseech You;
Look down from heaven and see, and take care of this vine,
Psalm 90:13
Do return, O Lord; how long will it be?
And be sorry for Your servants.
Zechariah 1:12
Then the angel of the Lord said, “O Lord of hosts, how long will You have no compassion for Jerusalem and the cities of Judah, with which You have been indignant these seventy years?”

General references

Exodus 8:32
But Pharaoh hardened his heart this time also, and he did not let the people go.
Exodus 9:30
But as for you and your servants, I know that you do not yet fear the Lord God.”
Deuteronomy 29:4
Yet to this day the Lord has not given you a heart to know, nor eyes to see, nor ears to hear.
Deuteronomy 30:18
I declare to you today that you shall surely perish. You will not prolong your days in the land where you are crossing the Jordan to enter and possess it.