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 allow your wife Jezebel, who says she is a prophetess and teaches and deceives my servants to commit fornication and eat things offered 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 allow your wife Jezebel, who says she is a prophetess and teaches and deceives my servants to commit fornication and eat things offered to idols.