Definition (house-style)
The economic Trinity (from the Greek oikonomia: household management, dispensation) refers to the three divine Persons in their salvific-historical activity and self-revelation: the Father as source and initiator, the Son as mediator and redeemer, the Spirit as applier and completer. The economic Trinity is contrasted with the immanent Trinity, which describes the relations of the divine Persons to one another — independently of creation and salvation history. In this corpus, the economic Trinity is the dominant framework: all three authors employ a salvation-historical Trinitarian vision, while the immanent Trinity is largely left aside or explicitly marked as unknowable.
Author variants
Jones
Jones structures the economic Trinity along the three Israelite feast times (Passover, Pentecost, Tabernacles) as salvation-historical phases of the Spirit’s presence:
“The Passover-Age Church, or Kingdom, began with Moses at that first Passover, when Israel came out of Egypt. […] It was an era where the Holy Spirit was WITH the people, but not IN them.”
“The third Church is the Tabernacles Age Church. At the beginning of this age God will pour out the fullness of His Spirit upon the overcomers.”
[Jones, Creation’s Jubilee, Ch. 6]
The three ages correspond to three qualitatively different modes of the Spirit’s presence: WITH (Old Testament era), IN (Pentecost era), FULLY (Tabernacles era). Jones ties these to the three harvest feasts and three successive resurrection squadrons (tagmata). The economic structure is for Jones primarily eschatological: it culminates in 1Cor. 15:24-28, where the Son delivers the Kingdom to the Father so that God may be all in all.
Nee/Lee
Nee/Lee define the economic Trinity as the divine dispensing of God himself to humanity through three successive phases:
“The three Persons of the Godhead are for God’s economy, the divine distribution, the holy dispensation. The Father as the source is embodied in the Son, and the Son as the channel is realized in the Spirit as the transmission.”
“God as the Father is the source; God as the Son is the channel and expression of the Father; and God as the Spirit is the transmission of God to man.”
[Nee/Lee, The Economy of God, Ch. 1]
The source→expression→transmission structure is asymmetric: each Person includes the preceding one. The soteriological goal is the dispensing of the Trinity into the human spirit. The immanent Trinity — how the Persons relate to one another apart from salvation history — is explicitly left aside by Nee/Lee.
Warnock
Warnock does not develop an explicit economic Trinitarian theology but implicitly describes an economic-Trinitarian structure: the Father reveals himself through and in the Son; the Spirit transfers the fruits of the cross to believers:
“God the Father was in that Man, walking in His sandals. And when Jesus walked among men as the sinless and spotless One, showing mercy and compassion to the multitudes, it was God the Father living in His Son and walking in His Son and showing mercy through His Son.”
[Warnock, The Hyssop that Springeth Out of the Wall, hyssop2.html]
Warnock emphasizes the indwelling of the Father in the Son as the hermeneutical key of the economic Trinity: the Father is not absent but present and active in the incarnation, the life, and the cross of the Son. The Spirit is described by Warnock as the bearer of Christ’s blood — a unique soteriological-economic formulation.