נָאַף
to commit adultery; figuratively, to apostatize
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to commit adultery; figuratively, to apostatize
נָאַף(nâʼaph)
Strong’s Definition
to commit adultery; figuratively, to apostatize
a primitive root;
“Thou shalt not commit adultery.”
No verses found containing this word study ID.
The Heart's Unfaithful Fire
Thirty-one times the Scripture sounds this solemn note — nâʼaph, a word that burns like a brand upon the conscience of Israel. It is a verb of rupture, of covenant torn asunder, of intimacy profaned. In the paleo-Hebrew script, the letters nun, aleph, and peh form a picture: the seed of life, the ox of strength, and the mouth that speaks. Together they whisper of a betrayal that begins in the heart and finds voice in the body. The ancient sages teach that this word carries the weight of a vow broken not only against a spouse, but against the Holy One Himself, who calls Israel His beloved bride.
The First Unfaithful Act
When God first performs the pattern of this verb, it is not as the one who commits the act, but as the one who names it. In the giving of the Law at Sinai, the Lord declares through Moses: "You shall not commit adultery" (Exodus 20:14). Here the verb nâʼaph appears in its Qal stem — the simple, active form — commanding Israel away from a deed that fractures the marriage covenant. Yet the rabbis of old observed that this command stands at the very heart of the Ten Words, flanked by prohibitions against murder and theft. Why? Because nâʼaph attacks the most intimate bond between two souls, the very image of God's covenant love. The Qal stem reveals the raw human choice: to remain faithful or to wander. God Himself never commits this act, for He is the faithful Husband of Israel. But Israel — ah, Israel — the prophets would later use this same verb to describe her chasing after other gods, her spiritual prostitution among the nations.
The Stem That Exposes the Heart
This verb appears not only in Qal but also in the Piel stem, where it intensifies the action — a repeated, habitual breaking of faith. The prophet Jeremiah cries out: "They were as fed horses in the morning, every one neighed after his neighbor's wife" (Jeremiah 5:8). The Piel form here paints a picture not of a single stumble, but of a settled pattern, a lifestyle of lust and betrayal. Jewish tradition holds that the Piel stem of nâʼaph mirrors the intensification of Israel's idolatry: what begins as a glance becomes a groaning, and what groans becomes a god. The covenant context could not be clearer — every act of physical adultery in Israel was a parable of her spiritual adultery against the Lord. The prophet Hosea lived this truth, commanded to marry a woman of whoredom so that Israel might see her own reflection in the broken marriage bed.
The Covenant Breaking Point
Obedience to the covenant hinged upon this single verb. When the prophet Malachi thunders against the men of Judah, he cries: "The Lord has been witness between you and the wife of your youth, against whom you have dealt treacherously: yet she is your companion, and the wife of your covenant" (Malachi 2:14). The word nâʼaph is not spoken aloud here, but its shadow falls across every line. The rabbis of old taught that the marriage covenant was a mirror of Sinai itself — the rings, the vows, the witnesses all echoed the giving of the Law. To break the lesser covenant was to mock the greater. And so the failure of Israel to keep this verb in its physical sense revealed a deeper failure: a heart that had wandered from the God who had betrothed her in righteousness and justice, in lovingkindness and mercy.
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The Prophetic Lament
The prophet Ezekiel takes up this verb and weaves it into a tapestry of sorrow. He records the Lord's indictment against Jerusalem: "You also played the harlot with the Egyptians, your neighbors, great of flesh; and have multiplied your harlotry to provoke Me to anger" (Ezekiel 16:26). Here nâʼaph becomes the language of international treachery — Israel's political alliances with pagan nations were acts of spiritual adultery. The ancient Hebrew letters now seem to groan: the seed of promise had been sown to foreign fields, the strength of the covenant had been traded for the ox of Egypt, and the mouth that should have sung the Lord's praises instead whispered treaties with oppressors. The sages teach that the gematria of this word — 131 — carries a hidden lesson. The number 131 is the sum of qodesh, meaning "holy place," and also of ha-mishkan, "the dwelling." The very number of adultery points to the sanctuary, for every betrayal of the covenant is an assault upon the place where God dwells among His people.
The Faithful One Who Bore the Shame
And now we come to the One who fulfills what this verb condemns. Yeshua stood before a woman caught in the very act of nâʼaph, her body the evidence of her guilt, the stones ready in the hands of her accusers (John 8:3-11). The scribes and Pharisees brought her to the Temple, the very place whose gematria whispers of the number of this sin. But Yeshua did not condemn her. He wrote in the dust — perhaps He wrote the very letters of nâʼaph, showing that the sin written in her flesh was also written in the hearts of every man who stood ready to throw. Then He spoke: "He who is without sin among you, let him be the first to cast a stone at her." One by one, they departed, convicted by their own consciences. And to the woman He said, "Neither do I condemn you; go and sin no more." Here is the Messiah who bore the shame of every broken covenant, who took the penalty of nâʼaph upon Himself at the cross, so that the adulterous bride — Israel, and all who believe — might be cleansed and restored to the Husband who never wanders.
The Number That Whispers of Holiness
The gematria of nâʼaph is 131, and the ancient Hebrew scribes pondered this number with trembling. For 131 is also the value of qodesh, the holy place, and of ha-mishkan, the dwelling of God. What does this teach? That the very act of adultery profanes the sanctuary. Every time Israel committed nâʼaph — whether in the bed or in the heart — she was defiling the place where the Lord's glory rested. But there is another word that shares this number: ha-berit, meaning "the covenant." The covenant and the holy dwelling are bound together by the same numerical thread as adultery. The rabbis of old saw in this a profound warning: to break the covenant is to drive the Shekinah from the sanctuary. Yet in the Messiah, the covenant is renewed, the dwelling is rebuilt, and the holy place is purified forever.
Your Heart's Devotion
And so, beloved, this verb comes to rest upon your own life. You have been betrothed to the Holy One through the blood of the Lamb. Every glance of lust, every wandering thought, every alliance with the spirit of this age is a form of nâʼaph against your faithful Husband. The sages teach that the heart is like a garden — what you water will grow. Will you water the seeds of faithfulness, or will you let the wild vines of adultery take root? You stand at the threshold of the sanctuary, and the number of your sin is the number of His dwelling. Return to the One who wrote in the dust for you, who bore your shame on the tree, who calls you not "adulteress" but "beloved." Let the fire of this verb burn away every unfaithful affection, and let your heart be a holy place where the Bridegroom dwells. Go, and sin no more.