Matthew 6:24
"No man can be the bondservant of two masters; for either he will dislike one and like the other, or he will attach himself to one and think slightingly of the other. You cannot be the bondservants both of God and of gold.
Luke 16:13
"No servant can be in bondage to two masters. For either he will hate one and love the other, or else he will cling fast to one and scorn the other. You cannot be bondservants both of God and of gold."
2 Thessalonians 2:11-12
And for this reason God sends them a misleading influence that they may believe the lie;
James 1:8
such a one is a man of two minds, undecided in every step he takes.
James 4:4
You unfaithful women, do you not know that friendship with the world means enmity to God? Therefore whoever is bent on being friendly with the world makes himself an enemy to God.
1 John 2:15
Do not love the world, nor the things in the world. If any one loves the world, there is no love in his heart for the Father.
Revelation 3:15-16
I know your doings--you are neither cold nor hot; I would that you were cold or hot!