Matthew 6:24

No person can serve two masters, for he will either hate the one and love the other, or else he will cling to the one and look down on the other. You cannot serve God and material things [at the same time].

Revelation 3:15-16

I know about your deeds, that you are neither [spiritually] cold nor hot. I wish you were [either] cold or hot.

Treasury of Scripture Knowledge

Summary

So these nations feared the LORD, and served their graven images, both their children, and their children's children: as did their fathers, so do they unto this day.

General references

Bible References

These nations

Matthew 6:24
No person can serve two masters, for he will either hate the one and love the other, or else he will cling to the one and look down on the other. You cannot serve God and material things [at the same time].
Revelation 3:15
I know about your deeds, that you are neither [spiritually] cold nor hot. I wish you were [either] cold or hot.

General references

James 1:8
because he is double-minded and undecided in all that he does [i.e., he cannot make up his mind and follow through about anything].