Isaiah 13:17 Behold, I will stir up the Medes against them, Which shall not regard silver; And as for gold, they shall not delight in it.
The Medes were going to be stirred up by God to attack God’s people. They would come in and destroy and couldn’t be bought off by money or any other way.
The thing to notice here is that God is at work in the affairs of this world. We do not know where He is working except where He says but He is at work, obviously.
A country was raised up and came into battle. You can know that God will deal with His people even if it means bringing them into a battle that they will lose.
We do not simply live our lives out of the sight of God. He is in charge. He is all powerful. He is at work.