Daniel 6:28

So this Daniel, the same one of whom the princes had spoken so contemptuously, prospered in the reign of Darius and in the reign of Cyrus, the Persian, for the Persian monarchy followed shortly after the Median. The miracles which the Lord performs in the interest of His children are intended to serve, among other things, for the unbelievers, so that they also may realize that the God of Israel, the God of the Christians, is the true, living God, the only Savior and Redeemer.