The Covenant (Διαθήκη) That Jesus Never Instituted

Belem Anderson Costa — Sun, 01 Feb 2026 00:00:00 +0000

Public source text: WLC (Westminster Leningrad Codex) + Nestle 1904. Translation: Bíblia Belem AnC 2025 — literal, rigid, straight from the public códices.

The Lexical Survey

Before interpreting, the investigator counts. The forensic analysis begins with raw data: how many times does Jesus use the word διαθήκη (diatheke — “covenant/testament”) in the Gospels?

The answer: three times. All at the Last Supper. All about blood.

The Three Occurrences

Matthew 26:28

τοῦτο γάρ ἐστιν τὸ αἷμά μου τῆς διαθήκης τὸ περὶ πολλῶν ἐκχυννόμενον εἰς ἄφεσιν ἁμαρτιῶν “For this is my blood of the covenant, poured out for many for remission of sins.”

Mark 14:24

τοῦτό ἐστιν τὸ αἷμά μου τῆς διαθήκης τὸ ἐκχυννόμενον ὑπὲρ πολλῶν “This is my blood of the covenant, poured out for many.”

Luke 22:20

τοῦτο τὸ ποτήριον ἡ καινὴ διαθήκη ἐν τῷ αἵματί μου τὸ ὑπὲρ ὑμῶν ἐκχυννόμενον “This cup is the new covenant in my blood, poured out for you.”

What Jesus SAYS About Covenant

The pattern is clear when cataloged:

Occurrence	Context	Content	Focus
Mt 26:28	Last Supper	“My blood of the covenant”	Blood
Mk 14:24	Last Supper	“My blood of the covenant”	Blood
Lk 22:20	Last Supper	“New covenant in my blood”	Blood

Three occurrences. Same event. Same theme: blood. No covenant doctrine. No opposition between “old” and “new.” No allegory. No institutionalization.

Jesus points to shed blood. Period.

What Jesus Does NOT Do

The list of what is absent from the lips of Jesus is as important as what is present:

What Jesus NEVER does	Who does it
Create a theology of covenant	Paul (Gal 3-4, 2Cor 3, Rom 9)
Use the expression “old covenant” (παλαιᾶς διαθήκης)	Paul (2Cor 3:14) — exclusively
Declare himself “minister of the covenant”	Paul (2Cor 3:6)
Oppose two covenants in allegory	Paul (Gal 4:24 — Hagar/Sarah)
Institute a substitutive system	Paul (Col 2:11-12 — spiritual circumcision)
Declare one covenant as obsolete	Paul (implicit in Heb 8:13, disputed Pauline attribution)

Jesus speaks of blood. Paul constructs a juridical-theological system.

The Textual Problem: Codex Bezae (D)

Here the investigation reaches a critical point.

The Codex Bezae (D, 5th century) and the Western tradition omit Luke 22:19b-20 — precisely the passage containing the expression “new covenant”:

Version	Luke 22:19-20
Codex Bezae (D)	Ends at “this is my body” — OMITS 19b-20
Nestle 1904	Includes 19b-20 (long text)
Westcott-Hort 1881	Includes with marginal note

The omitted phrase is precisely:

τοῦτο τὸ ποτήριον ἡ καινὴ διαθήκη ἐν τῷ αἵματί μου τὸ ὑπὲρ ὑμῶν ἐκχυννόμενον

Compare with what Paul writes in 1 Corinthians 11:25:

τοῦτο τὸ ποτήριον ἡ καινὴ διαθήκη ἐστὶν ἐν τῷ ἐμῷ αἵματι

The similarity is nearly identical. The forensic hypothesis is direct:

Easter Egg #94: If the short reading of Codex Bezae (D) reflects the original text of Luke, then Luke 22:19b-20 was interpolated later — harmonized with 1 Corinthians 11:25. In that case, it is not that Paul quoted the words of Jesus. It is that a scribe made the words of Jesus quote Paul. The direction of textual dependence is the most critical datum of this analysis.

The Silence of John

And now the most disturbing datum.

How many times does the word διαθήκη appear in the Gospel of John?

Zero.

John was at the Last Supper. John reclined on the chest of Jesus (Jn 13:23). John had the closest access of any witness. And John — in his narrative of the Last Supper (Jn 13-17) — records no mention of διαθήκη.

Evangelist	Occurrences of διαθήκη	Note
Matthew	1	Last Supper
Mark	1	Last Supper
Luke	1	Last Supper (textually disputed)
John	0	Absolute silence

John, who names without protecting (Principle of Editorial Reliability), who denounces without filter, who is the closest eyewitness — John does not mention covenant.

Three Possible Hypotheses

The forensic investigation formulates three hypotheses for the Johannine silence:

#	Hypothesis	Implication
1	John deliberately omitted it	Considered irrelevant for his narrative
2	Jesus did not say those words	The synoptic (and Pauline) tradition inserted them later
3	John recorded what he saw/heard with precision	And Jesus did not speak of “covenant” at the supper, but of something else

None of the three hypotheses is comfortable for tradition. Hypothesis 1 questions John’s completeness. Hypothesis 2 questions the authenticity of the synoptics. Hypothesis 3 questions the entire synoptic record of the Last Supper.

The Forensic Synthesis

The dossier on διαθήκη reveals a textual imbalance:

Datum	Value
Occurrences of Jesus using διαθήκη	3 (all about blood)
Occurrences of Paul using διαθήκη	30+ (complete theological system)
Expression “old covenant” in Jesus	0
Expression “old covenant” in Paul	1 (2Cor 3:14) — exclusive creation
Occurrences of διαθήκη in John	0
Critical textual variant	Codex Bezae omits Lk 22:19b-20

Jesus speaks of blood, not of doctrine. Paul constructs a system that Jesus never authorized in the terms in which Paul formulated it. John — the closest witness — is silent on the matter.

Tradition reads the New Testament as if Paul were the authorized interpreter of Jesus. The textual evidence suggests that Paul may have been the constructor of something that Jesus never built.

The evidence is documented. The verdict belongs to the reader.

“You read. And the interpretation is yours.”

Diatheke — Blog - The Blame is on the Sheep