Matthew 6:24
No one can serve two masters; for either he will hate the one, and love the other; or at lest he will be attached to the one, and neglect the other: ye cannot serve God and mammon:
Colossians 3:22
Servants, be obedient in all things to your lawful masters, not with eye-service as men-pleasers, but in uprightness of heart, fearing God; and whatever service ye do,
1 John 2:15
Love not the world, nor the things that are in the world; for if any one love the world to excess, the love of the Father is not in him.
2 Peter 2:15-22
who have forsaken the right way, and are gone astray, having followed the way of Balaam the son of Bosor, who loved the wages of iniquity;