Deuteronomy 4:3

Your eyes have seen what the Lord did because of Baal-peor: for destruction came from the Lord on all those among you who went after Baal-peor.

Numbers 25:1-9

Now when Israel was living in Shittim the people became false to the Lord, doing evil with the daughters of Moab:

Numbers 26:64

But among all these was not one of those numbered by Moses and Aaron the priest when the children of Israel were numbered in the waste land of Sinai.

Numbers 31:16

It was these who, moved by Balaam, were the cause of Israel's sin against the Lord in the question of Peor, because of which disease came on the people of the Lord.

Joshua 22:17

Was not the sin of Baal-peor great enough, from which we are not clear even to this day, though punishment came on the people of the Lord,

Psalm 106:28-29

And they were joined to Baal-peor, and took part in the offerings to the dead.

Hosea 9:10

I made discovery of Israel as of grapes in the waste land; I saw your fathers as the first-fruits of the fig-tree in her early fruit time; but they came to Baal-peor, and made themselves holy to the thing of shame, and became disgusting like that to which they gave their love.

Treasury of Scripture Knowledge

Summary

Your eyes have seen what the LORD did because of Baalpeor: for all the men that followed Baalpeor, the LORD thy God hath destroyed them from among you.

General references

Bible References

What the

Numbers 25:1
Now when Israel was living in Shittim the people became false to the Lord, doing evil with the daughters of Moab:
Numbers 31:16
It was these who, moved by Balaam, were the cause of Israel's sin against the Lord in the question of Peor, because of which disease came on the people of the Lord.
Joshua 22:17
Was not the sin of Baal-peor great enough, from which we are not clear even to this day, though punishment came on the people of the Lord,
Psalm 106:28
And they were joined to Baal-peor, and took part in the offerings to the dead.
Hosea 9:10
I made discovery of Israel as of grapes in the waste land; I saw your fathers as the first-fruits of the fig-tree in her early fruit time; but they came to Baal-peor, and made themselves holy to the thing of shame, and became disgusting like that to which they gave their love.

General references

Numbers 26:64
But among all these was not one of those numbered by Moses and Aaron the priest when the children of Israel were numbered in the waste land of Sinai.
Deuteronomy 3:29
So we were waiting in the valley facing Beth-peor.

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