Tongue

In Scripture, the word “tongue” carries both a physical and figurative meaning. The word can refer to the organ of speech (physical), the human speech, language, or communication (figurative), nations or language groups, the moral power of words such as blessing, cursing, life and destruction. Scripture also refers to the spiritual utterance in the gift of tongues.

Old Testament Hebrew Word

The primary Hebrew word translated tongue is, lashon (לָשׁוֹן) meaning the physical organ of the tongue, speech or language, a  linguistic group or nation or metaphorically: influence or expression.

Examples

Tongue as the organ of speech

“Death and life are in the power of the tongue, and those who love it will eat its fruit.” Proverbs 18:21

Tongue as language or nation

“Come and gather all nations and tongues. And they shall come and see My glory.” Isaiah 66:18

Tongue as deceitful speech

“Their tongue is a deadly arrow; it speaks deceit; with his mouth one speaks peace to his neighbour, but inwardly he sets an ambush for him.” Jeremiah 9:8

The OT emphasises the tongue’s moral weight, often linking it with wisdom, destruction, truth, or deception. Hebrew thought treats speech as an extension of the heart’s condition (cf. Prov. 18:21; Jer. 9:8).

New Testament Greek Words

There are two main Greek terms:

1.     glossa (γλῶσσα) meaning the physical organ of the tongue, a known human language and the supernatural gift of tongues (Spirit-enabled speech).

2.     dialektos (διάλεκτος) meaning a distinct language or dialect (always linguistic, not physical).

Greek Examples

Tongue as a known human language

“And how is it that we each hear them in our own language to which we were born?” Acts 2:8 (Greek: dialektos – dialect/language).

“Parthians and Medes and Elamites… we hear them in our own tongues speaking of the mighty deeds of God.” Acts 2:11 (Greek: glossa – languages).

Tongue as the physical organ

“And his mouth was opened immediately, and his tongue loosed, and he began to speak in praise of God.” Luke 1:64 (Greek: glossa – physical tongue here).

Tongue as spiritual gift

“If anyone speaks in a tongue, it should be by two or at the most three, and each in turn, and one must interpret.” 1 Corinthians 14:27 (Greek: glossa – Spirit-enabled utterance requiring interpretation)

Figurative and Theological Usage

The NT expands the OT theme, focusing heavily on the tongue as speech that reveals the heart and shapes spiritual life.

The tongue reveals inner corruption

“Their throat is an open grave, with their tongues they keep deceiving…” Romans 3:13

The tongue is small but powerful

“So also the tongue is a small part of the body, and yet it boasts of great things. See how great a forest is set aflame by such a small fire!” James 3:5

The tongue is humanly untameable

“But no one can tame the tongue; it is a restless evil and full of deadly poison.” James 3:8

The tongue both blesses and curses

“With it we bless our Lord and Father, and with it we curse men, who have been made in the likeness of God; from the same mouth come both blessing and cursing. My brethren, these things ought not to be this way.” James 3:9–10

Key Observations from the Word Study

Aspect	Hebrew (lashon)	Greek (glossa / dialektos)
Physical organ	Yes	Yes (glossa)
Human language group	Yes	Yes (glossa, dialektos)
Moral power of speech	Strong emphasis	Strong emphasis (esp. James 3)
Spiritual gift	No	Yes (glossa)
Heart-speech connection	Implicit and explicit	Explicit (Romans 3; James 3)

Doctrinal Themes Associated with the Tongue

1.     Speech has moral agency – It can carry death or life (Prov. 18:21; James 3:5–8).

2.     Words expose the heart – Deception, praise, poison, blessing, or cursing reveal inner reality (Jer. 9:8; Rom. 3:13; Luke 1:64; James 3:9–10).

3.     Language marks nations and God’s global plan – God gathers people from every tongue (Isa. 66:18; Acts 2:11).

4.     Spirit-enabled speech edifies when interpreted – The gift of tongues serves the church when understood (1 Cor. 14:27).

Practical Application

Self-Examination Questions

1.     Do my words bring life or destruction?

2.     Does my speech reflect sincerity or deception?

3.     Am I blessing God while injuring those made in His image?

4.     Do I steward words with the seriousness Scripture assigns to them?

Disciplines for Taming the Tongue
While James 3:8 states that no man can tame the tongue, Scripture shows the solution is not self-mastery alone, but Spirit-governed transformation. We need to foster a spirit and attitude of renewing the heart (source of speech), practise truthful and edifying speech, submit language to God’s glory and church edification and rely on the Holy Spirit to govern speech, not merely human restraint.

Closing Thoughts

The biblical concept of the tongue moves far beyond anatomy. In both Hebrew and Greek, it represents speech itself, revealing the heart, influencing life, identifying nations, and in the NT, functioning as a spiritual gift for edification when interpreted. Scripture consistently treats words as morally potent and spiritually consequential, placing the tongue at the centre of ethical and theological responsibility.