Matthew 12:30
"The man who is not with me is against me, and he who is not gathering with me is scattering abroad.
Mark 9:40
He who is not against us is for us;
Luke 11:23
Whoever is not with me is against me, and whoever is not gathering with me is scattering abroad.
Luke 9:50
"Do not forbid him," said Jesus, "for he who is not against you is on your side."
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.
John 11:52
and not for the nation only, but in order to unite into one body all the far-scattered children of God.
2 Corinthians 6:15-16
Where can harmony between Christ and Belial be found? Or what participation has a believer with an unbeliever?
1 John 2:19
They have gone forth from our midst, but they did not really belong to us; for had they belonged to us, they would have remained with us. But they left us that it might be manifest that professed believers do not all belong to us.
Revelation 3:15-16
I know your doings--you are neither cold nor hot; I would that you were cold or hot!