Rhema is the specific, spoken, living word of God — Scripture proclaimed, declared, and applied by the Spirit with divine power. While logos refers to the totality of God's revealed Word (including the written Scripture as a whole), rhema frequently highlights the word as spoken utterance — the active, voiced declaration of God's truth. Jesus resists Satan with rhema: "Man shall not live by bread alone, but by every word (rhēmati) that comes from the mouth of God" (Matthew 4:4). The "sword of the Spirit" in spiritual warfare is the rhema of God (Ephesians 6:17) — not a stored concept but an actively wielded word. Faith itself comes "by hearing, and hearing through the word (rhēmatos) of Christ" (Romans 10:17). Rhema captures the dynamic, performative nature of God's word — it does not merely inform; it creates, convicts, transforms, and saves.
WORD, n. An articulate or vocal sound, or a combination of articulate and vocal sounds, uttered by the human voice… In theology, the second person in the Trinity, the Logos… In the beginning was the Word, and the Word was with God, and the Word was God. — John 1. The word of God, the Scriptures; the revelation of God's will communicated to men in writing; the precepts of divine law and the promises and doctrines of religion.
• Matthew 4:4 — "Man shall not live by bread alone, but by every word (rhēmati) that comes from the mouth of God."
• Ephesians 6:17 — "Take the helmet of salvation, and the sword of the Spirit, which is the word (rhēma) of God."
• Romans 10:17 — "So faith comes from hearing, and hearing through the word (rhēmatos) of Christ."
• John 6:63 — "The words (rhēmata) that I have spoken to you are spirit and life."
• Luke 1:37 — "For nothing will be impossible with God." (lit. "no rhema shall be impossible with God")
In much of charismatic and Word-Faith theology, a sharp artificial distinction is made between logos (dismissed as the static written Bible) and rhema (elevated as a fresh personal revelation or "now word" from God). Under this framework, a believer who receives a "rhema word" — a subjective impression, prophecy, or feeling — has access to a higher, more immediate truth than Scripture alone provides. This is a dangerous inversion. In the NT, rhema and logos are largely interchangeable and both refer to Scripture as the living, active, Spirit-carried Word. There is no second tier of revelation above Scripture. The Spirit's ministry is not to supplement the written Word with personal revelations but to illuminate, apply, and empower the inscripturated Word. "The sword of the Spirit" — the rhema of God — is Scripture declared, not prophecy improvised.
G4487 — ῥῆμα (rhēma): "word, saying, utterance" — the active, spoken declaration of God's truth; used of Scripture proclaimed and the sword of the Spirit
G3056 — λόγος (logos): "word, reason, discourse" — the eternal, conceptual Word (Christ himself) and the written/revealed word of God in its totality
H1697 — דָּבָר (dabar): "word, matter, thing" — the Hebrew equivalent: God's word as dynamic event that accomplishes his purposes (Isaiah 55:11)