Hosea 8:11

Because Ephraim multiplied altars to sin, altars were to him to sin.

Hosea 12:11

If Gilead nothing? Surely they were vanity: in Gilgal they sacrificed oxen; also their altars as heaps upon the furrows of the field.

Deuteronomy 4:28

And ye served there gods, the work of men's hands, wood and stone, which shall not see, and shall not hear, and shall not eat, and shall not breathe.

Isaiah 10:10-11

As my hand found for the kingdoms of nothing, and their carved images from Jerusalem and from Shomeron;

Jeremiah 16:13

And I cast you out from this land upon the land which ye knew not, ye and your fathers; and ye served there other gods day and night, where I will not give to you mercy.

Hosea 10:1-2

Israel an empty vine, he will place fruit to himself: according to the multitude to his fruit he multiplied to his altars; according to the goodness of his land they made good pillars.

Hosea 10:8

And the heights of vanity were destroyed, the sin of Israel: the thorn and weeds shall come up upon their altars; and they said to the mountains, Cover us; and to the hills, Fall upon us.

Treasury of Scripture Knowledge

Summary

Because Ephraim hath made many altars to sin, altars shall be unto him to sin.

Bible References

Many

Hosea 10:1
Israel an empty vine, he will place fruit to himself: according to the multitude to his fruit he multiplied to his altars; according to the goodness of his land they made good pillars.
Hosea 12:11
If Gilead nothing? Surely they were vanity: in Gilgal they sacrificed oxen; also their altars as heaps upon the furrows of the field.
Isaiah 10:10
As my hand found for the kingdoms of nothing, and their carved images from Jerusalem and from Shomeron;

Altars

Deuteronomy 4:28
And ye served there gods, the work of men's hands, wood and stone, which shall not see, and shall not hear, and shall not eat, and shall not breathe.
Jeremiah 16:13
And I cast you out from this land upon the land which ye knew not, ye and your fathers; and ye served there other gods day and night, where I will not give to you mercy.