Catena Fidei

Acts 3:1 (WEB)
Peter and John were going up into the temple at the hour of prayer, the ninth hour.

Catechism · 1

§584Paragraph 1 · Jesus and IsraelRead at vatican.va
“His disciples remembered that it was written, 'Zeal for your house will consume me.'" After his Resurrection his apostles retained their reverence for the Temple.” — Catechism footnote: Cf. Acts 2:46; 3:1; 5:20, 21; etc.

Cyril of Jerusalem, Catechetical Lectures Lecture 18
“And again in the same power of the Holy Ghost, Peter and John went up into the Temple at the hour of prayer, which was the ninth hour, and in the Name of Jesus healed the man at the Beautiful gate, who had been lame from his mother’s womb for forty years; that it might be fulfilled which was…” — editor's note: Ib. iii. 1.
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Augustine of Hippo, Expositions on the Psalms Psalm 55
““In evening, in morning, at noon-day I will recount and will tell forth, and He shall hearken to my voice” (ver. 18).” — editor's note: [Acts ii. 15, iii. 1, x. 3, x. 9. The Apostles observed the “hours of prayer;” and they survive, theoretically, in the liturgies of Christendom. A.N.F. vol.…
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John Chrysostom, Homilies on John Homily 71
“Seest thou Peter and John inseparable from one another, and going up to the Temple? ( Acts iii. 1.)” — the author cites it
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Tertullian, On Modesty Chapter 21
“For they both raised the dead, which God alone (can do), and restored the debilitated to their integrity, which none but Christ (can do); nay, they inflicted plagues too, which Christ would not do.” — editor's note: Comp. Acts iii. 1–11; v. 13–16.
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Tertullian, On Prayer Chapter 25
“The same (apostle) was going into the temple, with John, “at the ninth hour,” when he restored the paralytic to his health.” — editor's note: Acts iii. 1: but the man is not said to have been “paralytic,” but “lame from his mother’s womb.”
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Cyprian of Carthage, On the Lord's Prayer
“But for us, beloved brethren, besides the hours of prayer observed of old, both the times and the sacraments have now increased in number.” — editor's note: [By the apostles, as here mentioned. Acts iii. 1 and passim.]
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John Cassian, The Institutes III.3Book III
“In another passage, too, in the Acts of the Apostles, we are told as follows about the same time: “But Peter and John went up into the temple at the hour of prayer, the ninth hour.”” — editor's note: Acts iii. 1.
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