The Greek adjective aoratos (ἀόρατος) combines the alpha-privative with horao (G3708, to see). It means invisible, unseen, or imperceptible to the physical eye. It is used primarily of God's nature and of the invisible realm of creation.
Aoratos stands at the heart of biblical theology of God. Romans 1:20 declares that 'since the creation of the world God's invisible (aorata) qualities — his eternal power and divine nature — have been clearly seen.' The invisible God is paradoxically perceived through visible creation. Colossians 1:15 calls Christ 'the image of the invisible (aoratou) God' — the incarnation is the making visible of the invisible. Hebrews 11:27 describes Moses 'persevering because he saw him who is invisible (ton aoaton).' Faith is the capacity to live by the invisible realities that are more real than what the eye can see.