Matthew 6:24

no man can serve two masters: for either he will hate the one, and love the other; or he will be attach'd to the one, and neglectful of the other. ye cannot serve God and Mamon.

Revelation 3:15-16

I know thy works, that thou art neither cold nor hot: I would thou wert 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 man can serve two masters: for either he will hate the one, and love the other; or he will be attach'd to the one, and neglectful of the other. ye cannot serve God and Mamon.
Revelation 3:15
I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.

General references

James 1:8
a diffident man is inconstant in all his actions.