145. aisthétérion
Lexical Summary
aisthétérion: Sense, faculty of perception

Original Word: αἰσθητήριον
Part of Speech: Noun, Neuter
Transliteration: aisthétérion
Pronunciation: ahee-sthay-tay'-ree-on
Phonetic Spelling: (ahee-sthay-tay'-ree-on)
KJV: senses
NASB: senses
Word Origin: [from a derivative of G143 (αἰσθάνομαι - perceive)]

1. (properly) an organ of perception
2. (figuratively) judgment

Strong's Exhaustive Concordance
a sense

From a derivative of aisthanomai; properly, an organ of perception, i.e. (figuratively) judgment -- senses.

see GREEK aisthanomai

HELPS Word-studies

145 aisthētḗrion (a neuter noun derived from aio, "perceive, discern through the senses") – properly, "the organ of sense" (BAGD), emphasizing the result of sensory experience (sensation) – i.e. moral feeling to know what is right or wrong in God's eyes (used only in Heb 5:14 and in the plural).

"145 (aisthētērion, neuter noun) focuses on the principle of sense and especially its result. 144 /aísthēsis (the feminine cognate) is the brand of sense-discernment which shrewdly sizes things up. 145 (aisthētḗrion) is "the concrete organ of sense, becoming virtually a habitual ability which must be developed and enables believers to distinguish between the spirits. It is a spiritual gift which must be developed in practice" (DNTT, 2, 391).

[Like 144 /aísthēsis, 145 /aisthētḗrion comes from 143 /aisthánomai ("to perceive with the aid of the physical senses").]

NAS Exhaustive Concordance
Word Origin
from aisthanomai and -térion (suff. denoting place)
Definition
organ of perception
NASB Translation
senses (1).

Thayer's Greek Lexicon
STRONGS NT 145: αἰσθητήριον

αἰσθητήριον, , τό, an organ of perception; external sense, (Hippocrates); Plato, Ax. 366 a.; Aristotle, polit, 4, 3, 9, others; faculty of the mind for perceiving, understanding, judging, Hebrews 5:14 (Jeremiah 4:19 αἰσθητήριον τῆς καρδίας, 4 Macc. 2:22 (common text) τά ἔνδον αἰσθητήρια).

Topical Lexicon
Biblical Occurrence and Immediate Context

Hebrews 5:14 presents αἰσθητήρια as the “senses” belonging to believers who are “mature.” The writer contrasts infants who subsist on “milk” (Hebrews 5:13) with those able to digest “solid food,” clarifying that maturity is measured not by chronological age or religious heritage but by an exercised capacity “to distinguish good from evil.” The verb “have trained” (gegymnasmena) frames these senses within rigorous, ongoing discipline, underscoring that discernment is acquired through repeated obedience to God’s word (Hebrews 12:11).

Spiritual Discernment as Mark of Maturity

1 Corinthians 2:14-15 affirms that the spiritual person “judges all things,” while Romans 12:2 links transformation of mind with testing and approving “what is the good, pleasing, and perfect will of God.” Philippians 1:9-10 prays for “knowledge and every kind of discernment” so that believers “may approve the things that are excellent.” Together these passages reveal that the senses spoken of in Hebrews refer to a Spirit-enabled faculty that evaluates reality through the lens of revealed truth.

Relationship to Training and Discipline

Gymnastic language pervades Hebrews (Hebrews 12:1, Hebrews 12:11) and situates αἰσθητήρια within the imagery of the palestra, where repetition and exertion hone skill. For Christians, practice involves continual exposure to Scripture (Psalm 1:2), submission to godly correction (Proverbs 9:8-9), participation in the body of Christ (Ephesians 4:11-16), and persevering obedience (James 1:22-25). As exercise strengthens a limb, so habitual compliance with divine commandments sensitizes moral perception.

Old Testament Echoes and Continuity

The command in Deuteronomy 30:15-16 to “choose life” and the prayer of Solomon for “a discerning heart” (1 Kings 3:9) anticipate the mature capacity highlighted in Hebrews. Isaiah 7:15 attributes moral discernment to the coming Immanuel, bridging Old Covenant expectation with New Covenant fulfillment in the One who Himself embodies perfect judgment (John 5:30).

New Testament Parallels

Discernment surfaces as an essential grace throughout the apostolic writings:
Matthew 7:15-20 – evaluating prophets by their fruit.
1 Thessalonians 5:21 – “Test all things. Hold fast to what is good.”
1 John 4:1 – discerning spirits.

These texts affirm that αἰσθητήρια encompass doctrinal, ethical, and relational discrimination.

Historical and Cultural Background

Hellenistic moralists spoke of αἰσθήσεις as inner faculties distinguishing virtue from vice. By adopting the plural form, the author of Hebrews taps familiar vocabulary yet baptizes it with covenantal content: the training ground is not Stoic meditation but covenant obedience, and the goal is conformity to Christ (Romans 8:29).

Theological Significance

1. Regeneration grants capacity for discernment (Ephesians 2:5).
2. Progressive sanctification sharpens that capacity (Colossians 1:9-10).
3. Ultimate glorification will perfect it (1 Corinthians 13:12).

Thus αἰσθητήρια illustrate the already-and-not-yet tension of Christian growth.

Practical Ministry Application

• Preaching: Expositional teaching supplies the “solid food” necessary for sense-training (2 Timothy 4:2).
• Counseling: Hebrews 5:14 provides a diagnostic category—immaturity often manifests in moral confusion, maturity in calibrated judgment.
• Leadership: Elders must display exercised αἰσθητήρια (Titus 1:9) to guard doctrine and guide conduct.
• Discipleship: Intentional practice—memorization, meditation, accountability—forms the spiritual reflexes that meet life’s complexities with biblical clarity.

Implications for Teaching and Preaching

Hebrews 5:14 warns against perpetual infancy; congregations starved of robust doctrine will lack discernment. Teachers must therefore move beyond elementary truths (Hebrews 6:1-2) without neglecting them, providing a balanced diet that cultivates perception and equips saints for every good work (2 Timothy 3:17).

Personal and Corporate Spiritual Formation

Individually, believers cultivate αἰσθητήρια through:
• Daily Scripture intake (Psalm 119:11).
• Prayerful reflection (Psalm 139:23-24).
• Obedient response to conviction (James 4:17).

Corporately, the local church functions as the training arena, where mutual exhortation (Hebrews 10:24-25) and shared experiences of grace forge collective discernment, enabling the body to resist false teaching and display holiness in a confused world.

In sum, Strong’s Greek 145 highlights a God-given, Spirit-energized capacity that must be disciplined through constant engagement with truth, resulting in believers—and churches—able to recognize the contours of righteousness and walk accordingly.

Forms and Transliterations
αισθητηρια αισθητήρια αἰσθητήρια αισθητική aistheteria aisthetḗria aisthētēria aisthētḗria
Links
Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
Hebrews 5:14 N-ANP
GRK: ἕξιν τὰ αἰσθητήρια γεγυμνασμένα ἐχόντων
NAS: have their senses trained
KJV: of use have their senses exercised to
INT: habit the senses exercised have

Strong's Greek 145
1 Occurrence


αἰσθητήρια — 1 Occ.

144
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