Matthew 6:24

No man can serve two masters: for either he will hate the one and love the other, or he will cleave to the one and neglect the other.

1 Corinthians 10:21-22

Ye cannot drink the cup of the Lord, and the cup of devils; ye cannot be partakers of the table of the Lord, and the table of devils.

Matthew 22:12

And saith to him, Friend, how camest thou in hither, not having a wedding-garment? And he was speechless.

Matthew 22:34

But the Pharisees having heard, that he had silenced the Saducees, were gathered together.

Matthew 22:36

trying him and saying, Master, which is the great commandment in the law?

Luke 6:13

And when it was day, he called to him his disciples, and chose twelve of them, whom also he named Apostles:

Romans 3:19

Now we know that whatsoever the law saith, it saith to them that are under the law; that every mouth may be stopped, and all the world be found guilty before God.

Romans 6:16-22

Know ye not, that to whom ye present yourselves servants to obey, his servants ye are whom ye obey? Whether of sin unto death, or of obedience unto righteousness?

2 Corinthians 6:14-16

Be not unequally 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: O that thou wert cold or hot!

Treasury of Scripture Knowledge

Summary

And Elijah came unto all the people, and said, How long halt ye between two opinions? if the LORD be God, follow him: but if Baal, then follow him. And the people answered him not a word.

General references

Bible References

Answered

Matthew 22:12
And saith to him, Friend, how camest thou in hither, not having a wedding-garment? And he was speechless.
Romans 3:19
Now we know that whatsoever the law saith, it saith to them that are under the law; that every mouth may be stopped, and all the world be found guilty before God.
Romans 6:21
What fruit had ye then from those things whereof ye are now ashamed? For the end of those things is death.

General references

James 1:8
A double-minded man is unstable in all his ways.