Salvation
Sacraments and Ordinances
Baptism and the Lord's Supper are Christ-instituted rites through which grace is signified, and on some views conveyed, to believers.
The doctrine explained
Nearly all Christian traditions practice baptism and the Lord's Supper (also called the Eucharist or Communion), tracing both to Christ's own institution and command (Matthew 28:19, Luke 22:19-20). The deep dividing question is what these rites do: are they primarily signs and seals that visibly picture and confirm a grace already given or promised, memorial acts of obedience and remembrance, or means through which grace is actually conveyed to the recipient (ex opere operato, 'by the very fact of the rite being performed,' in classical Catholic sacramental theology)?
Catholic and Orthodox theology holds seven sacraments (baptism, confirmation/chrismation, Eucharist, penance/confession, anointing of the sick, holy orders, and matrimony), each held to confer the grace it signifies when received with proper disposition, because Christ himself acts through the rite via the church's ministry. Most Protestant traditions recognize only baptism and the Lord's Supper as instituted directly by Christ for the whole church, often preferring the term 'ordinances' to signal a lower or different view of their causal efficacy, though Lutheran and much Reformed sacramental theology retains a robust view of real grace communicated through baptism and the Supper, short of the Catholic causal framework.
Eucharistic theology in particular has generated centuries of dispute over the mode of Christ's presence in the bread and wine. Catholic transubstantiation holds the substance of bread and wine is wholly converted into the substance of Christ's body and blood while the accidents (appearance) remain unchanged. Lutheran sacramental union holds Christ's body and blood are truly and substantially present in, with, and under the bread and wine without any change of substance. Reformed theology, following Calvin, holds Christ is present spiritually and really, received by faith through the Spirit's lifting the believer to feed on the ascended Christ, without any local or substantial presence in the elements. Zwinglian memorialism holds the Supper is chiefly a memorial act of remembrance and proclamation, without a special mode of Christ's presence beyond his general omnipresence.
Baptismal theology divides similarly over subject (infants of believers versus professing believers only) and mode (immersion, pouring, or sprinkling), and over whether baptism itself regenerates (baptismal regeneration, held in varying strengths by Catholic, Orthodox, and some Lutheran and Anglican theology) or symbolizes and seals a regeneration that occurs, or has occurred, through faith alone (the majority Baptist and much broader evangelical position).
Biblical basis
- Matthew 28:19The Great Commission command to baptize in the name of the Father, Son, and Holy Spirit.
- Romans 6:3-4Baptism as union with Christ's death and resurrection.
- Luke 22:19-20Christ's institution of the Supper: 'this is my body... this cup is the new covenant in my blood.'
- 1 Corinthians 11:23-29Paul's account of the Lord's Supper tradition and warning against unworthy participation.
- John 6:53-58Jesus' discourse on eating his flesh and drinking his blood, central to Eucharistic debates.
- Acts 2:38-39Peter's call to repent and be baptized, with the promise extended to 'you and your children.'
- Colossians 2:11-12Baptism likened to circumcision, cited in debates over infant baptism and covenant continuity.
How the wording developed
- 1st-2nd centuriesBaptism (often by immersion) and the weekly breaking of bread are practiced as central, apparently universal Christian rites from the earliest sources (Didache, Justin Martyr).
- 3rd-5th centuriesAugustine develops the classic definition of a sacrament as a visible sign of an invisible grace, and defends infant baptism against Pelagian objections.
- 1215, Fourth Lateran CouncilFirst formal conciliar use of the term 'transubstantiation' for the Eucharistic change.
- 1520s-1530sThe Reformation fractures Eucharistic theology: Luther's sacramental union, Zwingli's memorialism, and Calvin's spiritual real presence emerge as rival positions, famously clashing at the Marburg Colloquy (1529).
- 1545-1563, Council of TrentDefines transubstantiation and the sevenfold sacramental system as Catholic dogma against Protestant views.
- 1600sBeliever's baptism by immersion becomes a defining mark of the emerging Baptist tradition, rejecting infant baptism on covenantal and credobaptist grounds.
- 20th-21st centuriesEcumenical dialogues (e.g., the 1982 Lima document, Baptism, Eucharist and Ministry) seek convergence on sacramental theology across traditions, with partial but incomplete success.
Misunderstanding vs. the actual claim
Not this: All Protestants believe the Lord's Supper is 'just a symbol' with no spiritual significance.
But this: Lutheran and Reformed traditions affirm a real, though differently construed, communication of grace or of Christ himself in the Supper; memorialism is one Protestant option among several, not the default.
Not this: Transubstantiation means Catholics believe the bread physically changes in taste or appearance.
But this: Catholic theology explicitly holds the appearances (accidents) remain unchanged while only the underlying substance is held to change, a metaphysical rather than empirical claim.
Not this: Infant baptism means Christians who practice it believe babies are saved automatically by the ritual alone, irrespective of later faith.
But this: Most infant-baptizing traditions pair baptism with an expectation of later personal faith (confirmation) and see the sacrament as operative within, not apart from, the life of covenant nurture and eventual professed faith.
Where Christians differ
- • Catholic and Orthodox theology holds seven sacraments efficacious ex opere operato when rightly administered and received.
- • Lutheran theology holds two (or arguably three, including confession) sacraments with a strong view of real presence and baptismal grace, short of ex opere operato Catholic causality.
- • Reformed theology holds two sacraments as signs and seals of grace really but spiritually communicated to the faithful recipient.
- • Baptist and many free-church evangelical traditions hold two ordinances, memorial and symbolic in emphasis, reserved for professing believers.
The hardest question
If the mode of Christ's presence in the Supper has divided sincere, careful readers of the same texts (transubstantiation, sacramental union, spiritual presence, memorialism) for a millennium without resolution, what would count as adequate evidence for preferring one view over the others, and does the persistence of this disagreement suggest the New Testament itself simply underdetermines the metaphysics of the rite?
For further study
Primary and secondary sources on both sides of this question. Reading the strongest opposing case is part of the work, not a concession.
The Christian Faith — Michael Horton
A single-volume systematic theology that traces how each doctrine developed and where traditions divide.
The Christian Tradition (5 vols.) — Jaroslav Pelikan
The standard history of doctrinal development, indispensable for seeing when a doctrine was actually formulated.
God Crucified / Jesus and the God of Israel — Richard Bauckham
Shows that the highest Christology appears in the earliest sources, not centuries later.
Early Christian Doctrines — J. N. D. Kelly
Patristic doctrine described from the primary texts; the place to check what the Fathers actually said.