Catechism of the Catholic Church

Since God could create everything out of nothing, he can also, through the Holy Spirit, give spiritual life to sinners by creating a pure heart in them and bodily life to the dead through the Resurrection. God "gives life to the dead and calls into existence the things that do not exist." And since God was able to make light shine in darkness by his Word, he can also give the light of faith to those who do not yet know him. (1375, 992)