Matthew 6:24
No one can serve two masters: for he will either hate the one and love the other; or he will hold to the one, and neglect the other. You can not serve God and riches.
Colossians 3:22
Servants, obey in all things your masters according to the flesh, not with eye-service, as pleasing men, but with simplicity of heart, fearing God.
1 John 2:15
Love not the world, nor the things that are in the world. If any man loves the world, the love of the Father is not in him.
2 Peter 2:15-22
who have forsaken the right way and gone astray, following the way of Balaam the son of Beor, who loved the wages of unrighteousness;