Comparative Theology

Trinity

• Protestant: One God eternally existing in three persons, Father, Son, Holy Spirit; affirmed per the Ohienko-tradition baseline
• Catholic: Same core doctrine; affirms the Filioque (Spirit proceeds from Father and Son)
• Orthodox: Same core doctrine, but affirms the Spirit’s procession from the Father alone (the historic Filioque dispute between Rome and Constantinople, a real point of East-West divergence relevant to Greek Catholic/Orthodox comparison)
• Jewish: Rejected; strict monotheism with no internal plurality of persons
• Islamic: Explicitly rejected as shirk, though of limited direct relevance to Ukraine’s small Muslim minority (chiefly Crimean Tatar)
• Other Religious Perspectives: Not directly applicable to Ukraine’s dominant religious traditions
• Secular: Regarded as historically constructed doctrine, not metaphysically real

Deity / Sonship of Christ

• Protestant: Jesus is fully God and fully man, the eternal Son incarnate
• Catholic: Same core doctrine
• Orthodox: Same core doctrine, with strong emphasis on the incarnation as making possible theosis, humanity’s transformative union with the divine nature
• Jewish: Rejected
• Islamic: Denied; Isa honored as prophet, not divine son
• Other Religious Perspectives: —
• Secular: Regarded as later theological development

Salvation / Grace

• Protestant: By grace through faith alone (sola gratia, sola fide); forensic justification (виправдання) as the anchor doctrine of the Ohienko-tradition baseline
• Catholic: By grace, cooperating with the sacraments and ongoing sanctification; merit and infused grace categories present, especially resonant in Greek Catholic communities in communion with Rome
• Orthodox: Salvation as theosis: a lifelong, grace-enabled synergistic process of transformation and union with God, not a single forensic verdict; this is the sharpest substantive difference from the Protestant baseline in the Ukrainian context
• Jewish: Covenant faithfulness and repentance (teshuvah); no atoning mediator required
• Islamic: Not directly applicable
• Other Religious Perspectives: —
• Secular: Reframed as psychological or social wellbeing

Sin

• Protestant: Inherited condition (original sin) plus willful transgression
• Catholic: Same core doctrine, formalized through sacramental confession
• Orthodox: Ancestral sin: a weakened, mortality-prone condition inherited from Adam, distinct from the Western forensic-guilt framing; humanity’s fundamental problem is understood more as corruption and mortality than as inherited legal guilt
• Jewish: Transgression against covenant and law, addressed through repentance
• Islamic: Not directly applicable
• Other Religious Perspectives: Post-Soviet folk-magic frameworks sometimes attribute misfortune to curses (наврочення) rather than moral sin, a distinct popular category worth distinguishing from biblical sin-language
• Secular: Reframed as social harm or psychological maladjustment

Atonement

• Protestant: Christ’s substitutionary death satisfies divine justice and reconciles sinners to God
• Catholic: Same core doctrine, integrated with sacramental participation
• Orthodox: Emphasis on Christ’s death and resurrection together as victory over death and corruption (Christus Victor themes), alongside but not displacing substitutionary elements; the Paschal (Easter) victory, not the cross alone, is the theological and liturgical center of gravity
• Jewish: No sacrificial atonement doctrine tied to a messianic figure
• Islamic: Not directly applicable
• Other Religious Perspectives: —
• Secular: Regarded as ancient myth or symbol

Resurrection

• Protestant: Christ’s bodily resurrection is historical and foundational
• Catholic: Same core doctrine
• Orthodox: Central to Orthodox and Greek Catholic liturgical life; Pascha (Easter) is the highest feast of the church year, celebrated with distinctive, deeply embedded cultural practice (midnight liturgy, paska bread, greeting “Христос воскрес!” / “Christ is risen!”) that gives this doctrine unusually strong lived, not merely propositional, resonance in Ukrainian culture generally, even among nominal or lapsed believers
• Jewish: Future general resurrection affirmed in mainstream Jewish theology, not tied to Jesus
• Islamic: Not directly applicable
• Other Religious Perspectives: —
• Secular: Regarded as legend or theological invention

Authority of Scripture

• Protestant: The Bible alone (sola scriptura); the 1962 Ohienko translation carries near-canonical status within Ukrainian Protestantism as both a devotional and national-linguistic touchstone
• Catholic: Scripture together with sacred tradition and magisterial teaching authority
• Orthodox: Scripture read within and interpreted by holy tradition, the accumulated consensus and liturgical life of the church, rather than approached as a standalone text open to individual interpretation
• Jewish: The Tanakh plus Oral Torah/rabbinic tradition
• Islamic: Not directly applicable
• Other Religious Perspectives: —
• Secular: Regarded as historical-literary document without unique authority

Agreement and divergence

Ukrainian Protestant, Orthodox, and Greek Catholic believers agree fully on the Trinity, Christ’s deity, and the centrality of Christ’s death and resurrection to salvation, but diverge meaningfully on how salvation is appropriated: a single, forensic, faith-alone verdict (Protestant) versus a lifelong, grace-enabled process of transformation and union with God, theosis (Orthodox and, with additional Western sacramental categories layered in, Greek Catholic). This divergence is not a peripheral technicality in the Ukrainian context; it shapes how ordinary believers across traditions actually experience and describe their own faith, and cross-jurisdictional study groups, increasingly common in ecumenical and parachurch settings amid wartime cooperation across traditions, are exactly where this difference is most likely to surface directly.

Misunderstandings to avoid

Material written from an unreflective sola-fide default can read, to Orthodox or Greek Catholic readers, as flattening salvation into a single moment disconnected from ongoing transformation, sacramental life, and the church’s communal and liturgical dimension, none of which Orthodox theology treats as optional extras. Conversely, material that assumes theosis or sacramental categories without explanation can read as unfamiliar or even suspect to Protestant/Evangelical readers formed in the Ohienko-tradition’s more forensic vocabulary. This Language Package’s baseline deliberately follows the Ohienko/Protestant forensic framework for its Critical-risk terms while remaining aware that a meaningful share of the audience, particularly in ecumenical or general-audience contexts, carries a different starting framework that should not be dismissed or mischaracterized.

Sensitive terminology

Виправдання (justification) is this Language Package’s anchor forensic term and should be handled with its full Reformation-era, Ohienko-tradition legal precision, distinct from the broader, more process-oriented Orthodox vocabulary around обоження (theosis/deification) and спасіння (salvation) more generally, which Orthodox and Greek Catholic material uses more expansively. Анафема carries real ecclesiastical-historical weight in Ukrainian usage (evoking, for some readers, the 1708 anathematization of Ivan Mazepa or contemporary inter-jurisdictional disputes) and should be framed strictly as an apostolic warning within the text at hand, not connected to any specific present-day Ukrainian church body. Тіло (a homograph covering both “flesh” in the Pauline ethical sense and “body” in the ordinary physical sense) requires explicit first-occurrence disambiguation to avoid either condemning the physical body or softening ethical critique.

Historical controversies specific to this context

The Filioque controversy, whether the Holy Spirit proceeds from the Father alone (historic Eastern Orthodox position) or from the Father and the Son (Western/Catholic position, retained by Ukrainian Greek Catholics in communion with Rome), is a live point of East-West doctrinal distinction directly relevant to Ukraine’s own UGCC/Orthodox religious landscape, unlike in most other Language Package contexts where it is a purely historical footnote. The deeper and more consequential controversy for present-day Ukrainian church life, however, is not ancient but current: the jurisdictional and, since 2022, explicitly wartime-inflected dispute between the autocephalous Orthodox Church of Ukraine and the historically Moscow Patriarchate-linked Ukrainian Orthodox Church, a dispute this Language Package’s material should reference only factually and only where directly relevant, without staking out a position on the underlying legitimacy claims.