Matthew 6:24
No man can serve two masters: for he will either hate the one, and love the other; or he will adhere to the one, and disregard the other. Ye cannot serve God and mammon.
Colossians 3:22
Servants, obey in all things your masters after the flesh, not with eye-service as men-pleasers, but, in simplicity of heart, fearing God.
1 John 2:15
Love not the world, neither the things which are in the world. If any man love the world, the love of the Father is not in him.
2 Peter 2:15-22
who forsaking the strait road are gone out of the way, following the path of Balaam the son of Bosor who loved the wages of iniquity.