Matthew 6:24 presents the same exclusive allegiance: you cannot serve two masters, just as you cannot be neutral toward Jesus.

Joshua 24:15 calls Israel to choose whom they will serve — the same call to decide allegiance that Jesus makes in his statement.

Mark 9:40 says 'whoever is not against us is for us' — the opposite of Matthew's exclusive allegiance statement, creating a contrast.

Luke 9:50 parallels Mark 9:40, stating 'whoever is not against you is for you' — contrasting with Matthew's 'whoever is not with me is against me.'

Luke 11:23 is the parallel verse to Matthew 12:30, repeating the same saying about gathering and scattering.

In John 11:52, Jesus's mission to gather the scattered children of God directly parallels the gathering that is opposed by scattering.

In 2 Corinthians 6:15, the same irreconcilable divide between Christ and Belial echoes the principle that not being with Christ is being against Him.

In 1 John 2:19, those who left the community prove they were never truly with Christ—illustrating the 'not with me' becomes 'against me'.