Catena Fidei

Daniel 12:9 (WEB)
He said, “Go your way, Daniel; for the words are shut up and sealed until the time of the end.

Catechism · 1

§992Article 11 · "I Believe in the Resurrection of the Body"Read at vatican.va
“One cannot but choose to die at the hands of men and to cherish the hope that God gives of being raised again by him.” — Catechism footnote: 2 Macc 7:14; cf. 7:29; Dan 12:1-13.

Irenaeus of Lyons, Against Heresies I.19Book I
“But the angel, hiding from him the great mystery of Bythus, said unto him, “Go thy way quickly, Daniel, for these sayings are closed up until those who have understanding do understand them, and those who are white be made white.”” — editor's note: Dan. xii. 9, 10. The words in the above quotation not occurring in the Hebrew text of the passage, seem to have been interpolated by these heretics.
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Gregory of Nazianzus, Orations Oration 21
“Then indeed word and deed and thought will be weighed in the just balances of God, as He arises to judge the earth, gathering together counsel and works, and revealing what He had kept sealed up.” — editor's note: Dan. xii. 9.
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