Providence belongs to the ad extra works of God and in particular to the works of nature, which are to be distinguished from the works of grace. Therefore we do not speak of the works of grace under God’s providence. This distinction has not always been made by theologians, for even those who speak of the opera naturae [works of nature] and the opera gratiae [works of grace] classify miracles, which are in the closest connection with the works of grace, under providence.

Geerhardus Vos, Reformed Dogmatics, 228.