2 Chronicles 7:22

Then people will say, ‘It is because they abandoned the Lord, the God of their fathers, who brought them out of the land of Egypt, and they adopted other gods, and worshiped them and served them; therefore He has brought all this adversity and evil on them.’”

Judges 2:12-13

and they abandoned the Lord, the God of their fathers, who brought them out of the land of Egypt. They followed other gods from the gods of the peoples who were around them, and they bowed down to them, and offended and provoked the Lord to anger.

2 Chronicles 36:17

Therefore He brought the king of the Chaldeans against them, who killed their young men with the sword in the house of their sanctuary, and had no compassion on young man or virgin, old man or infirm; He gave them all into his hand.

Jeremiah 1:16

I will speak My judgments against them for all the wickedness of those who have abandoned (rejected) Me, offered sacrifices or burned incense to other gods, and worshiped the [idolatrous] works of their own hands.

Lamentations 2:16-17


All your enemies
Have opened their mouths wide against you;
They [scornfully] hiss and gnash their teeth.
They say, “We have swallowed her up!
Certainly this is the day for which we waited;
We have reached it, we have seen it!”

Lamentations 4:13-15


Because of the sins of her [counterfeit] prophets
And the wickedness of her [unfaithful] priests,
Who have shed in her midst
The blood of the just and righteous;

Ezekiel 14:23

Then they will reassure you [in regard to the appropriateness of the judgments] when you see their [heinous] conduct and actions, for you will know that I have not done without cause whatever I did to it,” declares the Lord God.

Ezekiel 36:17-20

“Son of man, when the house of Israel was living in their own land, they defiled it by their [own] behavior and by their [idolatrous] actions. Their conduct before Me was like the uncleanness of a woman during her [physical] impurity.

Daniel 9:12

And He has carried out completely His [threatening] words which He had spoken against us and against our rulers [the kings, princes, and judges] who ruled us, to bring on us a great tragedy; for under the whole heaven there has not been done anything [so dreadful] like that which [He commanded and] was done to Jerusalem.

Treasury of Scripture Knowledge

Summary

And it shall be answered, Because they forsook the LORD God of their fathers, which brought them forth out of the land of Egypt, and laid hold on other gods, and worshipped them, and served them: therefore hath he brought all this evil upon them.

Bible References

Because they forsook

Judges 2:12
and they abandoned the Lord, the God of their fathers, who brought them out of the land of Egypt. They followed other gods from the gods of the peoples who were around them, and they bowed down to them, and offended and provoked the Lord to anger.
Jeremiah 1:16
I will speak My judgments against them for all the wickedness of those who have abandoned (rejected) Me, offered sacrifices or burned incense to other gods, and worshiped the [idolatrous] works of their own hands.
Lamentations 2:16

All your enemies
Have opened their mouths wide against you;
They [scornfully] hiss and gnash their teeth.
They say, “We have swallowed her up!
Certainly this is the day for which we waited;
We have reached it, we have seen it!”
Lamentations 4:13

Because of the sins of her [counterfeit] prophets
And the wickedness of her [unfaithful] priests,
Who have shed in her midst
The blood of the just and righteous;
Ezekiel 14:23
Then they will reassure you [in regard to the appropriateness of the judgments] when you see their [heinous] conduct and actions, for you will know that I have not done without cause whatever I did to it,” declares the Lord God.
Ezekiel 36:17
“Son of man, when the house of Israel was living in their own land, they defiled it by their [own] behavior and by their [idolatrous] actions. Their conduct before Me was like the uncleanness of a woman during her [physical] impurity.

Therefore

2 Chronicles 36:17
Therefore He brought the king of the Chaldeans against them, who killed their young men with the sword in the house of their sanctuary, and had no compassion on young man or virgin, old man or infirm; He gave them all into his hand.
Daniel 9:12
And He has carried out completely His [threatening] words which He had spoken against us and against our rulers [the kings, princes, and judges] who ruled us, to bring on us a great tragedy; for under the whole heaven there has not been done anything [so dreadful] like that which [He commanded and] was done to Jerusalem.

General references

Deuteronomy 29:24
All the nations will say, ‘Why has the Lord done this thing to this land? Why this great outburst of anger?’
Jeremiah 22:8
“Many nations will pass by this city; and each man will say to another, ‘Why has the Lord done this to this great city?’
Ezekiel 20:48
All flesh will see that I the Lord have kindled it; it will not be quenched.”’”