Matthew 6:24
No one can serve two masters; for either he will hate the first, and love the other, or he will adhere to the first, and despise the other. You cannot serve God and riches.
Colossians 3:22
Servants, obey in all things masters according to the flesh, not with eye service, as those pleasing men, but with a sincere heart, fearing the Lord.
1 John 2:15
Love not the world, nor the things in the world. If any one loves the world, the love of the Father is not in him;
2 Peter 2:15-22
having left the right way they have gone astray, following in the way of Balaam the son of Beor who loved the wages of wickedness,