Saint Augustine on the Resurrection

When the Lord rose from the dead, he put off the mortality of the flesh; his risen body was still the same body, but it was no longer subject to death. By his resurrection he consecrated Sunday, or the Lord’s day. And so your own hope of resurrection, though not yet realised, is sure and certain, because you have received the sacrament or sign of this reality, and have been given the pledge of the Spirit.

If, then, you have risen with Christ, seek the things that are above, where Christ is seated at the right hand of God. Set your hearts on heavenly things, not the things that are on earth. For you have died and your life is hidden with Christ in God. When Christ, your life, appears, then you too will appear with him in glory