Is there any post-Acts evidence of people “Taking this, and eating it, in remembrance of me...” or praying “Our Father, who art in Heaven...”?
Until you comprehend that TRUTH, you will continue in the religion of ca5tholiciism to 'strive for salvation' and fail. Striving means trying to earn. YOU CANNOT EARN GOD's Grace!
ONLY GOD can forgive sin and there is no priest on this earth equal to the Great High Priest in Heaven, so there is no earthly priest who has the authority on earth to forgive sin or to tell GOD what sin HE must forgive.
Sorry; you get to ask no more questions until you answer some: #135 Do you accept what is written there??
Acts would be included in "Acts onward," but indeed yes, and no, respectively.
Yes:
For I have received of the Lord that which also I delivered unto you, That the Lord Jesus the same night in which he was betrayed took bread: And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me. After the same manner also he took the cup, when he had supped, saying, This cup is the new testament in my blood: this do ye, as oft as ye drink it, in remembrance of me. For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come. (1 Corinthians 11:23-26)
And no, as regards precisely as Our Father, who art in Heaven..., which was not taught to be a ritual prayer, but a pattern. "After this manner," (Mt. 6:9)
And thus among the pprox. 200 prayers in Scripture, we have in Acts onward,
For this cause I bow my knees unto the Father of our Lord Jesus Christ, (Ephesians 3:14)
We give thanks to God and the Father of our Lord Jesus Christ, praying always for you, (Colossians 1:3)
And they prayed, and said, Thou, Lord, which knowest the hearts of all men, shew whether of these two thou hast chosen, (Acts 1:24)
And when they heard that, they lifted up their voice to God with one accord, and said, Lord, thou art God, which hast made heaven, and earth, and the sea, and all that in them is: (Acts 4:24)
And they stoned Stephen, calling upon and saying, Lord Jesus, receive my spirit. (Acts 7:59)
Repent therefore of this thy wickedness, and pray God, if perhaps the thought of thine heart may be forgiven thee. (Acts 8:22)
But nowhere does the Holy Spirit provide any examples of prayer in Heaven to anyone else but the Lord, except by pagans.