But there are some of you that believe not. For Jesus knew from the beginning who they were that believed not, and who should betray him. This verse reveals the tragedy of false profession and the sovereignty of Christ's knowledge. 'Some of you' indicates not all claiming discipleship are genuine believers. The phrase 'from the beginning' (ex archēs) shows Jesus knew from the start—before calling them—who would prove false. This demonstrates divine omniscience and undercuts any notion of Christ being surprised or defeated by betrayal. The mention of the betrayer (Judas, though unnamed here) alongside generic unbelievers shows that Judas's apostasy, though uniquely tragic, fits the pattern of false profession. Reformed theology distinguishes between visible church (those who profess) and invisible church (those who truly believe). Not all who follow Christ are His; not all profession is genuine. This warns against presumption while encouraging true believers—Christ knows His own (2 Timothy 2:19).
Historical Context
John's Gospel uniquely emphasizes Jesus's foreknowledge of Judas's betrayal (6:64, 6:70-71, 13:11, 13:18). Writing decades after the events, John clarifies that Judas's betrayal didn't catch Jesus off-guard or thwart His mission—it was foreseen and incorporated into God's redemptive plan (Acts 2:23). The broader context addresses the problem of apostasy that troubled the early church. Many who initially followed Christ fell away when discipleship proved costly (1 John 2:19: 'They went out from us, but they were not of us'). For John's persecuted audience, this was sobering comfort—Christ foreknew who would prove faithful and who wouldn't. The Judas reference anticipates chapter 13's foot-washing and betrayal narrative. Church history repeatedly proves this pattern: not all who profess Christ belong to Him; genuine faith perseveres.
Questions for Reflection
How does Jesus's foreknowledge of unbelief and betrayal affect your understanding of His sovereignty?
What distinguishes genuine faith from mere profession or superficial following?
How should the warning about false disciples affect our assurance and church membership standards?
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Analysis & Commentary
But there are some of you that believe not. For Jesus knew from the beginning who they were that believed not, and who should betray him. This verse reveals the tragedy of false profession and the sovereignty of Christ's knowledge. 'Some of you' indicates not all claiming discipleship are genuine believers. The phrase 'from the beginning' (ex archēs) shows Jesus knew from the start—before calling them—who would prove false. This demonstrates divine omniscience and undercuts any notion of Christ being surprised or defeated by betrayal. The mention of the betrayer (Judas, though unnamed here) alongside generic unbelievers shows that Judas's apostasy, though uniquely tragic, fits the pattern of false profession. Reformed theology distinguishes between visible church (those who profess) and invisible church (those who truly believe). Not all who follow Christ are His; not all profession is genuine. This warns against presumption while encouraging true believers—Christ knows His own (2 Timothy 2:19).