Joshua 7:12

For this reason the children of Israel have given way, turning their backs in flight before their attackers, because they are cursed: I will no longer be with you, if you do not put the cursed thing away from among you.

Numbers 14:45

Then the Amalekites came down, and the Canaanites who were living in the hill-country, and overcame them completely, driving them back as far as Hormah.

Joshua 6:18

And as for you, keep yourselves from the cursed thing, for fear that you may get a desire for it and take some of it for yourselves, and so be the cause of a curse and great trouble on the tents of Israel.

Judges 2:14

And the wrath of the Lord was burning against Israel, and he gave them up into the hands of those who violently took their property, and into the hands of their haters all round them, so that they were forced to give way before them.

Deuteronomy 7:26

And you may not take a disgusting thing into your house, and so become cursed with its curse: but keep yourselves from it, turning from it with fear and hate, for it is a cursed thing.

Joshua 22:18-20

That now you are turned back from the Lord? and, because you are false to him today, tomorrow his wrath will be let loose on all the people of Israel.

Judges 2:4

Now on hearing these words which the angel of the Lord said to all the children of Israel, the people gave themselves up to loud crying and weeping.

Psalm 5:4-5

For you are not a God who takes pleasure in wrongdoing; there is no evil with you.

Proverbs 28:1

The evil man goes running away when no man is after him, but the upright are without fear, like the lion.

Isaiah 59:2

But your sins have come between you and your God, and by your evil doings his face has been veiled from you, so that he will give you no answer.

Jeremiah 6:8

Undergo teaching, O Jerusalem, or my soul will be turned away from you, and I will make you a waste, an unpeopled land.

Jeremiah 23:33

And if this people, or the prophet, or a priest, questioning you, says, What word of weight is there from the Lord? then you are to say to them, You are the word, for I will not be troubled with you any more, says the Lord.

Hosea 9:12

Even though their children have come to growth I will take them away, so that not a man will be there; for their evil-doing will be complete and they will be put to shame because of it.

Habakkuk 1:13

Before your holy eyes sin may not be seen, and you are unable to put up with wrong; why, then, are your eyes on the false? why do you say nothing when the evil-doer puts an end to one who is more upright than himself?

Haggai 2:13-14

Then Haggai said, Will any of these be made unclean by the touch of one who is unclean through touching a dead body? And the priests answering said, It will be made unclean.

Treasury of Scripture Knowledge

Summary

Therefore the children of Israel could not stand before their enemies, but turned their backs before their enemies, because they were accursed: neither will I be with you any more, except ye destroy the accursed from among you.

Bible References

The children

Joshua 22:18
That now you are turned back from the Lord? and, because you are false to him today, tomorrow his wrath will be let loose on all the people of Israel.
Numbers 14:45
Then the Amalekites came down, and the Canaanites who were living in the hill-country, and overcame them completely, driving them back as far as Hormah.
Judges 2:4
Now on hearing these words which the angel of the Lord said to all the children of Israel, the people gave themselves up to loud crying and weeping.
Psalm 5:4
For you are not a God who takes pleasure in wrongdoing; there is no evil with you.
Proverbs 28:1
The evil man goes running away when no man is after him, but the upright are without fear, like the lion.
Isaiah 59:2
But your sins have come between you and your God, and by your evil doings his face has been veiled from you, so that he will give you no answer.
Habakkuk 1:13
Before your holy eyes sin may not be seen, and you are unable to put up with wrong; why, then, are your eyes on the false? why do you say nothing when the evil-doer puts an end to one who is more upright than himself?

They were

Joshua 6:18
And as for you, keep yourselves from the cursed thing, for fear that you may get a desire for it and take some of it for yourselves, and so be the cause of a curse and great trouble on the tents of Israel.
Deuteronomy 7:26
And you may not take a disgusting thing into your house, and so become cursed with its curse: but keep yourselves from it, turning from it with fear and hate, for it is a cursed thing.
Haggai 2:13
Then Haggai said, Will any of these be made unclean by the touch of one who is unclean through touching a dead body? And the priests answering said, It will be made unclean.

Neither

Jeremiah 6:8
Undergo teaching, O Jerusalem, or my soul will be turned away from you, and I will make you a waste, an unpeopled land.
Jeremiah 23:33
And if this people, or the prophet, or a priest, questioning you, says, What word of weight is there from the Lord? then you are to say to them, You are the word, for I will not be troubled with you any more, says the Lord.
Hosea 9:12
Even though their children have come to growth I will take them away, so that not a man will be there; for their evil-doing will be complete and they will be put to shame because of it.

General references

Numbers 14:42
Go not up, for the Lord is not with you, and you will be overcome by those who are fighting against you.
Deuteronomy 23:9
When you go out to war and put your tents in position, keep from every evil thing.
Psalm 106:30
Then Phinehas got up, and made prayer for them; and the disease went no farther.
Malachi 3:9
You are cursed with a curse; for you have kept back from me what is mine, even all this nation.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain