Lexicon

H7307 - ruach

Strong's: H7307 · BLB lookup Pronunciation: roo'-akh Part of speech: feminine noun (occasionally masculine when of the divine Spirit) Greek equivalent (LXX): G4151 - pneuma, overwhelmingly the standard rendering. OT occurrences: ~378

Semantic range (Brown-Driver-Briggs)

Wind, atmospheric / meteorological (Genesis 8:1; Job 1:19; Jonah 1:4).
Breath, physical respiration; "breath of life" (Genesis 6:17, 7:15).
Disposition / temperament, inner attitude (Numbers 5:14 "spirit of jealousy"; Joshua 5:1 "spirit melted"; Proverbs 14:29 "slow to anger").
Animating principle, the life-spirit that departs at death (Ecclesiastes 12:7; Psalm 146:4).
Inner self / mind / will, the seat of consciousness, emotion, will (1 Samuel 1:15 "I poured out my soul"; Daniel 7:15 "my spirit was distressed").
The Spirit of God / divine Spirit, God's active power, presence, inspiration (Genesis 1:2; Exodus 31:3; Joel 2:28-29).

The semantic flexibility of ruach, like Greek pneuma, allows it to span the whole spectrum from physical (wind / breath) to psychological (disposition / inner self) to theological (divine Spirit). The connecting metaphor: moving air, invisible, powerful, life-bearing.

Theological force, the divine Spirit

The most theologically loaded use is the Spirit of God, Ruach Elohim / Ruach YHWH. Three foundational uses:

Creation. Genesis 1:2, v'Ruach Elohim merachefet al-pnei ha-mayim, "and the Spirit of God was hovering over the face of the waters." The divine Spirit is present from creation's inception. The verb merachefet (hovering) is rare, used elsewhere only of an eagle (Deuteronomy 32:11) hovering over its young. The image: God's Spirit broods protectively-actively over the unformed creation.
Empowerment for service. Exodus 31:3, Bezalel filled with Ruach Elohim "with skill, with understanding, with knowledge, and with all craftsmanship" for tabernacle construction. Numbers 11:25, the Spirit on the seventy elders. Judges 3:10; 6:34; 11:29; 14:6; 15:14, the Spirit empowering the Judges. 1 Samuel 16:13, the Spirit anointing David. 2 Kings 2:9-15, Elijah's spirit on Elisha. The Spirit empowers prophetic, royal, judicial, and craft service in OT economy.
Eschatological promise. Joel 2:28-29, "I will pour out My Spirit on all mankind… your sons and daughters will prophesy." Ezekiel 36:26-27, "I will give you a new heart… I will put My Spirit within you." The promise: the Spirit, restricted to specific persons in OT, will be poured out on all flesh in the eschatological age. Acts 2:17, Peter at Pentecost cites Joel 2:28-29 as fulfilled.

Ruach and the Trinitarian structure

The OT Ruach Elohim / Ruach YHWH anticipates but does not fully reveal the Holy Spirit as the third Trinitarian person. The OT pattern:

The Spirit is God's own Spirit, distinguishable in some sense from God speaking (Genesis 1:1-2, 3, God / Spirit / Word in close conjunction)
The Spirit is God's active power in creation, history, prophecy
The Spirit is personally referred to in some passages (Isaiah 63:10, "they grieved His Holy Spirit") suggesting personhood
The full Trinitarian doctrine awaits NT revelation

The progressive-revelation pattern: OT Ruach hints; NT Pneuma (in John 14-16, Romans 8, etc.) reveals the Spirit's full personhood and divinity.

Notable verses

Creation

Genesis 1:2, Ruach Elohim hovering over the waters
Genesis 2:7, God breathes (neshamat, parallel concept) the breath of life into Adam
Job 33:4, "the Spirit of God has made me, and the breath (neshamah) of the Almighty gives me life"
Psalm 33:6, "by the Ruach of His mouth all their host" (paralleled with davar)
Psalm 104:30, "you send forth Your Ruach, they are created"

Empowerment

Exodus 31:3, Bezalel filled with Ruach Elohim
Numbers 11:25, Spirit on the seventy elders
Numbers 11:29, Moses: "would that all the LORD's people were prophets, that the LORD would put His Ruach upon them" (anticipates Pentecost)
Judges 3:10, Othniel; 6:34, Gideon; 11:29, Jephthah; 14:6, 19; 15:14, Samson
1 Samuel 10:6, 10, Saul; 16:13-14, David anointed; Spirit departs from Saul

Prophetic / Messianic

Numbers 24:2, Spirit on Balaam
Isaiah 11:1-2, Ruach YHWH rests on the Branch (Messiah): "the Spirit of wisdom and understanding, the Spirit of counsel and strength, the Spirit of knowledge and the fear of the LORD"
Isaiah 42:1, "I have put My Ruach upon Him" (Servant Song, applied to Christ in Matthew 12:18)
Isaiah 61:1, "the Ruach of the Lord GOD is upon me" (cited by Jesus in Luke 4:18)

Eschatological promise

Joel 2:28-29, outpouring on all flesh (cited Acts 2:17 at Pentecost)
Ezekiel 36:26-27, new heart + Spirit-indwelling
Ezekiel 37:1-14, valley of dry bones; Ruach enters the bones
Isaiah 32:15; 44:3, Ruach poured out
Zechariah 12:10, Ruach of grace and supplication poured out

Inner-self / disposition

Genesis 41:8, Pharaoh's ruach troubled
Psalm 51:10-12, David: "create in me a clean heart… renew a steadfast ruach within me… do not take Your Holy Ruach from me… restore to me the joy of Your salvation, and sustain me with a willing ruach"
Proverbs 16:32, "he who rules his ruach (better than) he who captures a city"
Proverbs 25:28, "a man without control over his ruach is like a city broken into"

Wind / breath

Genesis 6:17, Ruach chayyim (breath of life)
Genesis 8:1, God sent a ruach over the earth (wind dried the floodwaters)
Job 1:19, "a great ruach came from across the wilderness"

Patristic / scholarly note

The patristic tradition reads Ruach Elohim of Genesis 1:2 as the Holy Spirit, Basil of Caesarea (On the Holy Spirit 16, c. AD 375); Augustine (De Genesi ad Litteram 1.6); the Cappadocian-Constantinople creedal tradition. The phrase grounds the Spirit's eternal presence in creation alongside the Father (who speaks) and the Son (the Word).

The relationship between Ruach and Pneuma is critical for biblical theology:

Same conceptual range, wind, breath, spirit, Spirit
LXX renders almost universally with pneuma
NT use of pneuma assumes OT Ruach background, the Holy Spirit is the same divine Ruach now revealed in fuller Trinitarian-personal clarity

Modern conservative Old-Testament-pneumatology: Daniel Block (Ezekiel), Christopher Wright (Knowing the Holy Spirit through the Old Testament, 2006), James Hamilton (God's Indwelling Presence, 2006). Modern systematic-pneumatology: Sinclair Ferguson (The Holy Spirit, 1996); Wayne Grudem (Systematic Theology, ch. 30); Michael Horton (Pilgrim Theology, 2011).

Verses in this codex

See Obsidian's backlinks pane for every verse page linking here.