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.
Luke 16:13
No domestic can serve two masters; for he will either hate the first and love the other, or he will adhere to the first and despise the other. You cannot serve God and riches.
2 Thessalonians 2:11-12
And therefore, God sends them a power of delusion that they should believe a lie,
James 1:8
a double-minded man, unstable in all his ways.
James 4:4
Adulteresses, know you not that the friendship of the world is enmity against God? Whoever therefore wishes to be a friend of the world, is made an enemy of God.
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;
Revelation 3:15-16
I know your works, that you are neither cold nor hot. I wish you were cold or hot.