2 Chronicles 6:1
Then said Solomon, The Lord hath said that he would dwell in the thick darkness.
Cross-reference
In Exodus 20:21, Moses approaches the thick darkness where God was — the same 'thick darkness' Solomon references as God's chosen dwelling.
Deuteronomy 4:11 describes God's presence at Sinai with 'thick darkness' — the exact phrase Solomon uses for God's dwelling in the temple.
1 Kings 8:12-21 records the same prayer — Solomon's declaration that God dwells in thick darkness, in the parallel account.
Psalm 97:2 declares clouds and darkness surround God — echoing the same truth Solomon speaks of God dwelling in thick darkness.
Exodus 19:9 records God's promise to come in a thick cloud — the same promise Solomon references about dwelling in thick darkness.
Isaiah 6:4 shows the temple filled with smoke — a parallel theophany to God dwelling in thick darkness here.
Hebrews 12:18 recalls the thick darkness of Sinai, referencing the same imagery of God's presence — but as a contrast to the new covenant.
Leviticus 16:2 tells of God appearing in the cloud above the mercy seat — the same hidden presence Solomon acknowledges as dwelling in thick darkness.
Psalm 18:8-11 depicts God making darkness his secret place — the same hiddenness Solomon acknowledges in God dwelling in thick darkness.
Exodus 24:15-18 describes the cloud covering Sinai and God's glory as devouring fire — a similar theophanic hiding of God's presence.
Ezekiel 1:4 depicts God's glory in a cloud with fire — similar imagery of divine presence in cloud/darkness.
In Nahum 1:3, God's way in whirlwind and clouds parallels the thick darkness here — both show God's presence in natural phenomena.