The hearing ear, and the seeing eye, the LORD hath made even both of them.
– Proverbs 20:12
The hearing ear and seeing eye are expressions of understanding and obedience (Isaiah 6:9-10; Mark 4:9-12). The second phrase shows these faculties to be gifts of God’s grace and therefore accountable to him. So not only does wisdom come from God, but the understanding of wisdom as well. This proverb also reveals the sovereign attribute of omniscience, since the hearing ear and seeing eye come from God, he possesses these in greater degree (Psalm 94:9).