Deuteronomy 29:25

And they will say, '[It is] because they abandoned the covenant of Yahweh, the God of their ancestors, which he {made} with them {when he brought them out} from the land of Egypt.

1 Kings 19:10-14

Then he said, "I have been very zealous for Yahweh the God of hosts, for the {Israelites} have forsaken your covenant. They have demolished your altars, and they have killed your prophets with the sword. I alone am left over, and they seek to take my life.

Isaiah 24:1-6

Look! Yahweh [is] about to lay the earth waste and [is] about to devastate it, and he will twist her surface, and he will scatter her inhabitants.

Isaiah 47:6

I was angry with my people; I profaned my inheritance, and I gave them into your hand. You did not {give} them mercy; on [the] aged you made your yoke very heavy.

Jeremiah 22:9

Then they will answer, 'Because they abandoned the covenant of Yahweh their God, and bowed down in worship to other gods, and served them.'"

Jeremiah 31:32

not like the covenant that I {made} with their ancestors on the day of my grasping [them] by their hand, bringing them out from the land of Egypt, my covenant that they themselves broke, though I myself was a master over them," {declares} Yahweh.

Jeremiah 40:2-3

And [the] captain of [the] guard took Jeremiah and said to him, "Yahweh your God threatened this disaster to this place,

Jeremiah 50:7

All [those who] found them have devoured them. And their foes have said, 'We are not guilty, {because} they have sinned against Yahweh, the {true pasture}, even Yahweh, the hope of their ancestors.'

Hebrews 8:9

not like the covenant which I made with their fathers on the day I took hold of them by my hand to lead them out of the land of Egypt, because they did not continue in my covenant and I disregarded them, says the Lord.

Treasury of Scripture Knowledge

Summary

Then men shall say, Because they have forsaken the covenant of the LORD God of their fathers, which he made with them when he brought them forth out of the land of Egypt:

Bible References

They have forsaken

1 Kings 19:10
Then he said, "I have been very zealous for Yahweh the God of hosts, for the {Israelites} have forsaken your covenant. They have demolished your altars, and they have killed your prophets with the sword. I alone am left over, and they seek to take my life.
Isaiah 24:1
Look! Yahweh [is] about to lay the earth waste and [is] about to devastate it, and he will twist her surface, and he will scatter her inhabitants.
Jeremiah 22:9
Then they will answer, 'Because they abandoned the covenant of Yahweh their God, and bowed down in worship to other gods, and served them.'"
Jeremiah 31:32
not like the covenant that I {made} with their ancestors on the day of my grasping [them] by their hand, bringing them out from the land of Egypt, my covenant that they themselves broke, though I myself was a master over them," {declares} Yahweh.
Hebrews 8:9
not like the covenant which I made with their fathers on the day I took hold of them by my hand to lead them out of the land of Egypt, because they did not continue in my covenant and I disregarded them, says the Lord.

General references

Jeremiah 22:8
And many nations will pass by this city and they will say each one to his neighbor, '{Why} has Yahweh done in this manner to this great city?'
Lamentations 4:12
[The] kings of [the] earth did not believe, and all [the] inhabitants of [the] world, that a foe and an enemy could enter into the gates of Jerusalem.
Ezekiel 20:48
And all creatures will see that I, Yahweh, I kindled it--it will not be quenched!" '"
Ezekiel 36:34
And the land that was desolate will be cultivated in {the very place that} it was desolate before [the] eyes of all of [the persons] crossing over.
Luke 17:29
But on the day that Lot went out from Sodom, it rained fire and sulphur from heaven and destroyed [them] all.