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TVST Framework

Tersia Voskuil Sanctification Theory

An interactive diagram mapping the full TVST framework — the two intrapsychic systems, the Downward Spiral Zone, and the I-Stand goal — with BFST parallels on each node.

Beliefs & Principles SystemFlesh & Feeling SystemDownward Spiral ZoneI-Stand (Goal)DimensionsClick any node for details
UPWARD PATH — SANCTIFICATIONDOWNWARD SPIRAL ZONE (DSZ)INTRAPSYCHIC DIMENSIONINTERPERSONAL DIMENSIONUPWARDBeliefs & Principles SystemBPSCognitive system + Truth of God's WordYielding → fruit of the SpiritGal. 5:16–17 · 2 Cor. 10:4–5iFlesh & Feeling SystemFFSEmotional system + sin natureYielding → works of the fleshGal. 5:19–21 · Jer. 17:9iBitterness &UnforgivenessBUHeb. 12:15 · Eph. 4:31Evil SpeakingESEph. 4:29 · Jas. 3:6Intrapsychic failureFeeling-OrientedLivingFOLGal. 5:19–21 · Jas. 1:14The I-StandIS — GOAL OF TVSTBeliefs → Actions (congruence)Maturity · Sanctification · HolinessiIntrapsychic DimensionBPS vs FFS · Spirit over FleshInterpersonal DimensionSelf vs Others · BU & FOL↑ The Soft-Self inhabits the DSZ — immaturity, self-indulgence, low sanctificationThe Saint-Self yields to the BPS and takes I-Stands → increasing sanctification ↑

All Framework Nodes

About this Diagram

TVST was developed by Tersia Voskuil as a theory of sanctification that parallels Bowen Family Systems Theory (BFST). It describes the believer as capable of effort and responsibility in their sanctification, addressing the pastoral problem of the slowness of sanctification identified by Porter (2014). The framework operates at two dimensions — intrapsychic (BPS vs FFS) and interpersonal (I-Stand vs DSZ) — mirroring the intrapsychic and interpersonal dimensions of BFST differentiation. Click any node above or in the diagram to explore the BFST parallel for each concept.

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