New Revised Standard Version
Then they will say, ‘Because they have forsaken the LORD their God, who brought their ancestors out of the land of Egypt, and embraced other gods, worshiping them and serving them; therefore the LORD has brought this disaster upon them.’”

Contemporary English Version
Then they will answer, "We know why the LORD did this. The people of Israel rejected the LORD their God, who rescued their ancestors from Egypt, and they started worshiping other gods."

New American Bible
And the answer will come: “Because they abandoned the LORD, their God, who brought their ancestors out of the land of Egypt, and they embraced other gods, bowing down to them and serving them. That is why the LORD has brought upon them all this evil.”

Douay-Rheims Bible
And they shall answer: Because they forsook the Lord their God, who brought their fathers out of the land of Egypt, and followed strange gods, and adored them, and worshipped them: therefore hath the Lord brought upon them all this evil.

And they shall answer: Because they forsook the Lord their God, who brought their fathers out of the land of Egypt, and followed strange gods, and adored them, and worshipped them: therefore hath the Lord brought upon them all this evil.

Because

Deuteronomy 29:25-28 And they shall answer: Because they forsook the covenant of the Lord, which he made with their fathers, when he brought them out of the land of Egypt: . . .

2 Chronicles 7:22 And they shall answer: Because they forsook the Lord the God of their fathers, who brought them out of the land of Egypt, and laid hold on strange gods, and adored them, and worshipped them: therefore all these evils are come upon them.

Jeremiah 2:10-13,19 Pass over to the isles of Cethim, and see: and send into Cedar, and consider diligently: and see if there hath been done any thing like this. . . .

Jeremiah 5:19 And if you shall say: Why hath the Lord our God done all these things to us? thou shalt say to them: As you have forsaken me, and served a strange god in your own land, so shall you serve strangers in a land that is not your own.

Jeremiah 16:10-13 And when thou shalt tell this people all these words, and they shall say to thee: Wherefore hath the Lord pronounced against us all this great evil? what is our iniquity? and what is our sin, that we have sinned against the Lord our God? . . .

Jeremiah 50:7 All that found them, have devoured them: and their enemies said: We have not sinned in so doing: because they have sinned against the Lord the beauty of justice, and against the Lord the hope of their fathers.

Lamentations 2:16,17 Phe. All thy enemies have opened their mouth against thee: they have hissed, and gnashed with the teeth, and have said: We will swallow her up: lo, this is the day which we looked for: we have found it, we have seen it. . . .

Lamentations 4:13-15 Mem. For the sins of her prophets, and the iniquities of her priests, that have shed the blood of the just in the midst of her. . . .

Ezekiel 36:17-20 Son of man, when the house of Israel dwelt in their own land, they defiled it with their ways, and with their doings: their way was before me like the uncleanness of a menstruous woman. . . .

Zephaniah 1:4,5 And I will stretch out my hand upon Juda, and upon all the inhabitants of Jerusalem: and I will destroy out of this place the remnant of Baal, and the names of the wardens of the temples with the priests: . . .

therefore

Jeremiah 12:7,8 I have forsaken my house, I have left my inheritance: I have given my dear soul into the hand of her enemies. . . .