Matthew 6:24
No one can serve two masters; for either he will hate one, and love the other; or else he will cleave to one, and despise the other. Ye cannot serve God and mammon.
1 Corinthians 10:21-22
Ye cannot drink the cup of the Lord, and the cup of demons; ye cannot be partakers of the Lords table, and the table of demons.
Matthew 22:12
and he saith to him, Friend, how camest thou in here, not having a wedding garment? And he was struck dumb.
Matthew 22:34
And the Pharisees, hearing that he had put the Sadducees to silence, assembled together;
Matthew 22:36
Teacher, which commandment is great in the Law?
Luke 6:13
And when it was day, he called to him his disciples; and he chose from them twelve, whom he also named apostles;
Romans 3:19
Now we know that whatever the Law saith, it saith to those who are under the Law; that every mouth may be stopped, and all the world become subject to condemnation before God.
Romans 6:16-22
Know ye not, that whomever ye choose to obey as a master, his bondmen ye are, whether of sin whose fruit is death, or of obedience whose fruit is righteousness?
2 Corinthians 6:14-16
Be not strangely yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? Or what communion hath light with darkness?
Revelation 3:15-16
I know thy works, that thou art neither cold nor hot; I would thou wert cold or hot.