“Whoever is not with me,
Is against me.
Whoever does not gather
ὁ μὴ ὢν μετ’ ἐμοῦ κατ’ ἐμοῦ ἐστιν, καὶ ὁ μὴ συνάγων μετ’ ἐμοῦ σκορπίζει.
This saying of Jesus is exactly the same, word for word, in Luke, chapter 11:23, thus indicating a Q source. You are either with Jesus or against him. There is no in between. Whoever is not with Jesus (ὁ μὴ ὢν μετ’ ἐμοῦ), is against him (κατ’ ἐμοῦ ἐστιν). Whoever does not gather with Jesus (καὶ ὁ μὴ συνάγων μετ’ ἐμοῦ), scatters abroad (σκορπίζει). Either you stand and gather with Jesus or you are against him and scatter everywhere. The choice is yours.