Leviticus 20:23

And ye shall not walk in the practices of the Gentiles which I shall cast out before you; for they committed all these things, and therefore I abhorred them.

Leviticus 18:3

You shall not do as they do in the land of Egypt, in which ye dwelt; nor shall you do as they do in the land of Canaan, where I bring you; neither shall ye walk in their statutes.

Leviticus 18:24

Do not defile yourselves in any of these things; for in all these things the Gentiles which I cast out before you have defiled themselves;

Leviticus 18:30

Keep, therefore, my ordinance that ye commit not any one of these abominable laws which were committed before you, and do not defile yourselves in them; I am the LORD your God.

Leviticus 18:27

(For all these abominations were done by the men of the land who were before you, and the land was contaminated.)

Deuteronomy 9:5

Not for thy righteousness or for the uprightness of thine heart, dost thou enter in to inherit their land; but for the wickedness of these Gentiles, the LORD thy God drives them out from before thee and that he may confirm the word which the LORD swore unto thy fathers, Abraham, Isaac, and Jacob.

Deuteronomy 12:30-31

keep thyself from being snared by following them, after they are destroyed from before thee; enquire not after their gods, saying, After the manner that these Gentiles served their gods, even so will I do likewise.

Psalm 78:59

God heard this and was wroth and greatly abhorred Israel:

Jeremiah 10:1-2

Hear ye the word which the LORD has spoken over you, O house of Israel:

Zechariah 11:8

I also cut off three shepherds in one month; and my soul was in anguish for them, and their soul also abhorred me.

Treasury of Scripture Knowledge

Summary

And ye shall not walk in the manners of the nation, which I cast out before you: for they committed all these things, and therefore I abhorred them.

General references

Bible References

In the manners

Leviticus 18:3
You shall not do as they do in the land of Egypt, in which ye dwelt; nor shall you do as they do in the land of Canaan, where I bring you; neither shall ye walk in their statutes.
Deuteronomy 12:30
keep thyself from being snared by following them, after they are destroyed from before thee; enquire not after their gods, saying, After the manner that these Gentiles served their gods, even so will I do likewise.
Jeremiah 10:1
Hear ye the word which the LORD has spoken over you, O house of Israel:

Therefore

Leviticus 18:27
(For all these abominations were done by the men of the land who were before you, and the land was contaminated.)
Deuteronomy 9:5
Not for thy righteousness or for the uprightness of thine heart, dost thou enter in to inherit their land; but for the wickedness of these Gentiles, the LORD thy God drives them out from before thee and that he may confirm the word which the LORD swore unto thy fathers, Abraham, Isaac, and Jacob.
Psalm 78:59
God heard this and was wroth and greatly abhorred Israel:
Zechariah 11:8
I also cut off three shepherds in one month; and my soul was in anguish for them, and their soul also abhorred me.

General references

Numbers 33:56
Moreover it shall come to pass that I shall do unto you, as I thought to do unto them.
Deuteronomy 12:4
Ye shall not do so unto the LORD your God.