Matthew 12:30

He that is not with me, is against me; and he that gathers not with me, scatters.

Luke 9:50

And Jesus said to him: Forbid him not; for whoever is not against us, is for us.

Revelation 2:20-23

But I have against you that you suffer that woman Jezebel, who calls her self a prophetess, and teaches and deceives my servants to practice lewdness, and to eat things sacrificed to idols.

Treasury of Scripture Knowledge

Summary

Then he wrote a letter the second time to them, saying, If ye be mine, and if ye will hearken unto my voice, take ye the heads of the men your master's sons, and come to me to Jezreel by to morrow this time. Now the king's sons, being seventy persons, were with the great men of the city, which brought them up.

If ye be mine

Your master's sons

Bible References

If ye be mine

Matthew 12:30
He that is not with me, is against me; and he that gathers not with me, scatters.
Luke 9:50
And Jesus said to him: Forbid him not; for whoever is not against us, is for us.

Your master's sons

Revelation 2:20
But I have against you that you suffer that woman Jezebel, who calls her self a prophetess, and teaches and deceives my servants to practice lewdness, and to eat things sacrificed to idols.