Luke 9:50 states 'whoever is not against you is for you' — contrasting with the exclusive allegiance demanded in Luke 11:23.

Luke 16:13 teaches you cannot serve both God and money — reinforcing the same principle of undivided allegiance Jesus states in the gathering/scattering metaphor.

Matthew 12:30 contains the identical saying about gathering and scattering — a direct parallel to Luke's call for clear allegiance.

Mark 9:40 states the opposite principle — 'whoever is not against us is for us' — directly contrasting the exclusive loyalty Jesus demands here.