Why accuse Jesus of blasphemy?
Why did the Pharisees accuse Jesus of blasphemy in Luke 5:21?

Definition of Blasphemy in Second-Temple Judaism

Blasphemy (Heb. ḥillûl ha šēm; Gk. blasphēmia) denoted any irreverent use of God’s name, denial of His unique attributes, or usurpation of prerogatives belonging only to Him (Leviticus 24:16; Isaiah 37:23). Rabbinic elaborations preserved in m. Sanhedrin 7:5 and Ḥagigah 5a expand the concept to include claiming divine titles or powers.


Legal Framework under the Mosaic Covenant

Leviticus 24:15–16 prescribes death for blasphemy. By the 1st century AD, capital jurisdiction belonged to the Sanhedrin, though Rome reserved execution (cf. John 18:31). The Mishnah (redacted c. AD 200 but reflecting earlier tradition) stipulates that blasphemy occurs when the Tetragrammaton is pronounced or God’s exclusive functions are claimed. Forgiving sin was considered one of those exclusive functions (Exodus 34:6–7; Micah 7:18).


Pharisaic Theology of Forgiveness

The Pharisees taught that forgiveness came through Temple sacrifices (Leviticus 4:20) and Days of Atonement rituals (Leviticus 16). Personal repentance and almsgiving were significant but never detached from the cultus (Sirach 17:23–24). No prophet or priest individually pronounced absolute remission apart from divine mediation.


Jesus’ Pronouncement: A Direct Claim of Divine Prerogative

By declaring, “Your sins are forgiven,” without invoking Temple sacrifice, Jesus exercised an authority that, in Pharisaic eyes, belonged to Yahweh alone. Isaiah 43:25 records God saying, “I, yes I, am He who blots out your transgressions.” Therefore the charge of blasphemy arose because:

1. He used the present indicative “are forgiven,” not a future petition.

2. He omitted priestly or sacrificial mediation.

3. He located that authority in Himself (cf. Mark 2:10, “the Son of Man has authority on earth to forgive sins”).


Old Testament Foundations Anticipating Messianic Authority

While God alone forgives, prophetic texts hint that the coming Servant/Messiah would bear iniquity (Isaiah 53:11–12; Jeremiah 31:34). Jesus’ action fulfills these prophecies, but the Pharisees, expecting a political‐military Messiah, failed to link Isaiah’s Suffering Servant with Jesus’ ministry.


Motivations behind the Pharisaic Accusation

1. Protection of Torah purity (Deuteronomy 13:1–5).

2. Maintenance of their interpretive authority (Matthew 23:2).

3. Fear of Roman reprisal if messianic fervor grew (John 11:48).

4. Spiritual blindness foretold in Isaiah 6:9–10.


Parallels in Synoptic Tradition

Mark 2:1–12 and Matthew 9:1–8 record the same event. Triple-tradition corroboration meets criteria of multiple attestation, supporting historicity. The consistent core—Jesus forgives, the leaders charge blasphemy—shows the early Church did not invent a harmless Jesus but preserved a controversial one.


External Corroboration of the Setting

• The 1968 discovery of a 1st-century Capernaum insula compound confirms multi-story basalt houses with accessible roofs, matching Luke’s architectural detail.

• The “Polio" skeleton discovered beneath that level aligns with paralytic maladies known in the Galilee population.

• Josephus, Antiquities 18.63–64, affirms that Temple authorities prosecuted those thought to be sorcerers or deceptive miracle-workers, paralleling the leaders’ posture toward Jesus.

• Dead Sea Scroll 4Q521 anticipates a Messianic figure who “will heal the sick... and forgive sins,” underscoring that some Jewish sects foresaw such authority—heightening the Pharisees’ alarm when Jesus embodied the role.


Theological Implications

By confronting the leaders with an unambiguous divine claim, Jesus forced a verdict: either He was committing capital blasphemy or He is Yahweh incarnate. Luke structures the narrative so that the instantaneous healing supplies empirical validation of His invisible authority (Luke 5:24–25).


Practical Applications

1. Assurance: Believers possess full pardon in Christ apart from ritual sacrifice (Hebrews 10:11–14).

2. Evangelism: Present Jesus not merely as a moral teacher but as God who forgives.

3. Worship: The healed man’s immediate glorification of God (Luke 5:25–26) models our response to grace.


Conclusion

The Pharisees accused Jesus of blasphemy because, within their legal-theological framework, only Yahweh could absolve sin. Jesus’ declaration therefore constituted, in their eyes, an unlawful usurpation of divine privilege. The narrative, preserved with textual fidelity and corroborated by archaeology and prophecy, instead reveals the incarnate Yahweh exercising His rightful authority, inviting all to receive the same forgiveness and rise to new life.

How can Jesus forgive sins according to Luke 5:21 if only God can do so?
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