Psalm 106:35

but mixed themselves with the nations, and learned their works.

Judges 3:5-6

The children of Israel lived among the Canaanites, the Hittites, and the Amorites, and the Perizzites, and the Hivites, and the Jebusites:

Joshua 15:63

As for the Jebusites, the inhabitants of Jerusalem, the children of Judah couldn't drive them out; but the Jebusites live with the children of Judah at Jerusalem to this day.

Judges 1:27-36

Manasseh did not drive out [the inhabitants of] Beth Shean and its towns, nor [of] Taanach and its towns, nor the inhabitants of Dor and its towns, nor the inhabitants of Ibleam and its towns, nor the inhabitants of Megiddo and its towns; but the Canaanites would dwell in that land.

Judges 2:2-3

and you shall make no covenant with the inhabitants of this land; you shall break down their altars.' But you have not listened to my voice: why have you done this?

Isaiah 2:6

For you have forsaken your people, the house of Jacob, because they are filled from the east, with those who practice divination like the Philistines, and they clasp hands with the children of foreigners.

1 Corinthians 5:6

Your boasting is not good. Don't you know that a little yeast leavens the whole lump?

1 Corinthians 15:33

Don't be deceived! "Evil companionships corrupt good morals."

Treasury of Scripture Knowledge

Summary

But were mingled among the heathen, and learned their works.

Bible References

Learned

Isaiah 2:6
For you have forsaken your people, the house of Jacob, because they are filled from the east, with those who practice divination like the Philistines, and they clasp hands with the children of foreigners.
1 Corinthians 5:6
Your boasting is not good. Don't you know that a little yeast leavens the whole lump?
1 Corinthians 15:33
Don't be deceived! "Evil companionships corrupt good morals."

General references

Judges 1:32
but the Asherites lived among the Canaanites, the inhabitants of the land; for they did not drive them out.
1 Samuel 8:20
that we also may be like all the nations, and that our king may judge us, and go out before us, and fight our battles."
Proverbs 22:25
lest you learn his ways, and ensnare your soul.