Matthew 6:24
No slave can belong to two masters, for he will either hate one and love the other, or stand by one and make light of the other. You cannot serve God and money.
Colossians 3:22
You who are slaves must always obey your earthly masters, not with mere external service, as though you had only men to please, but with sincerity of heart, because you fear the Lord.
1 John 2:15
Do not love the world or what is in the world. If anyone loves the world, there is no love for the Father in his heart,
2 Peter 2:15-22
They have left the straight path and gone astray. They have followed the path of Balaam, the son of Beor, who set his heart on dishonest gain,