Hosea 8:11

Because Ephraim has multiplied altars for sin, the altars shall be a sin unto him.

Hosea 12:11

Is Gilead iniquity? surely they are vanity: they sacrifice bullocks in Gilgal; yea, their altars are as heaps in the furrows of the fields.

Deuteronomy 4:28

And there ye shall serve gods, the work of men's hands, wood and stone, which neither see, nor hear, nor eat, nor smell.

Isaiah 10:10-11

As my hand has found the kingdoms of the idols, and whose graven images did excel those of Jerusalem and of Samaria;

Jeremiah 16:13

Therefore I will cause you to be cast out of this land into a land that ye do not know, neither ye nor your fathers; and there ye shall serve other gods day and night; for I will not grant you mercy.

Hosea 10:1-2

Israel is an empty vine. Shall he bring forth fruit unto himself? According to the multiplication of his fruit he has multiplied altars; according to the goodness of his land they have bettered their statues.

Hosea 10:8

And the altars of Aven shall be destroyed, the sin of Israel: the thorn and the thistle shall grow upon their altars; and they shall say to the mountains, Cover us; and to the hills, Fall on 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 is an empty vine. Shall he bring forth fruit unto himself? According to the multiplication of his fruit he has multiplied altars; according to the goodness of his land they have bettered their statues.
Hosea 12:11
Is Gilead iniquity? surely they are vanity: they sacrifice bullocks in Gilgal; yea, their altars are as heaps in the furrows of the fields.
Isaiah 10:10
As my hand has found the kingdoms of the idols, and whose graven images did excel those of Jerusalem and of Samaria;

Altars

Deuteronomy 4:28
And there ye shall serve gods, the work of men's hands, wood and stone, which neither see, nor hear, nor eat, nor smell.
Jeremiah 16:13
Therefore I will cause you to be cast out of this land into a land that ye do not know, neither ye nor your fathers; and there ye shall serve other gods day and night; for I will not grant you mercy.