And I will give you the treasures of darkness, and hidden riches of secret places, that you may know that I, the LORD, who call you by your name, am the God of Israel.
All Commentaries on Isaiah 45:3 Go To Isaiah 45
John Chrysostom
AD 407
“I will give you the treasures of darkness.” … This is the way [Isaiah] referred to hell. Even if it was hell, it still preserved the sacred souls and precious vessels, Abraham, Isaac and Jacob. This is why Isaiah called it a place of treasures, even if in darkness, because the Sun of justice had not yet penetrated there with its rays or with any message on the resurrection.