The Book Of God

...et in libro tuo omnes scribentur. Ego pro his rogo, non pro saeculo rogo, sed pro his quos dedisti mihi. Pro his ergo orat ut in libro Dei scribantur. Et si qui forte ambigant cur non in libro viventium scripti sunt, mihi majoris dignitatis videtur esse in libro Dei scribi; quia peccatores de libro viventium delentur, justi autem in libro Dei scribuntur. Quod utrumque sub his dictis significatur: Deleantur de libro viventium, et cum justis non scribantur. Pro resurrectionis enim diversitate, quia stella ab stella differt in gloria, plures in libro viventium erunt. Justi autem in libro Dei scribentur, quia peccatores non modo cum justis non scribentur, sed ne in libero quidem viventium relinquentur. Sanctus Hilarius Pictaviensis, Tractatus super Psalmos, Tractatus in Psalmum CXXXVIII Source: Migne PL 9.811a-c

...and in your book all things shall be written. 1 'I ask for these, not for the world, but for these you have given me.' 2 For these He asks, that they shall be written in the book of God. And if perhaps someone wonders why they were not written in the book of the living, it seems to me to be of greater merit to be written in the book of God, because sinners are removed from the book of life, and the righteous are written in the book of God. Both these meanings are signified by the words, 'Let them be removed from the book of the living and let them not be written with the righteous.' 3 Because there is difference in the resurrection, since star and star differs in glory, 4 more shall be found in the book of the living. But the righteous shall be written in the book of God, for sinners shall not only not be written with the righteous, but neither shall they remain in the book of the living. Saint Hilary of Poitiers, Homilies on the Psalms, from Psalm 138 1 Ps 138.16 2 Jn 17.9 3 Ps 68.29 4 1 Cor 15.41