The passage, "but when the perfect comes, the partial will be done away" follows Paul's statement, "For we know in part, and we prophesy in part," and those follow the statement of prophecies and tongues ceasing and knowledge diminishing (1Cor 13:8-9)."
We need to get the timeline as to when Paul wrote that.
I Corinthians circa 50-55 AD
At the time of I Corinthians?
Most of the NT had not yet been written!
That is why... They only could know in part!
That is why they need the gifts to fill in the blanks.
An over all timeline?"
Epistles of Paul
I_Thessalonians circa 51-54 AD - 52 AD from Corinth
II Thessalonians circa 51-54 AD - 53 AD from Corinth
Galatians circa 58-61 AD - 55 AD from Ephesus
I Corinthians circa 50-55 AD - 55 AD from Ephesus
II Corinthians circa 57-60 AD - 57 AD from Philippi
Romans circa 58-61 AD - 58 AD from Corinth
just before heading for Jerusalem
Ephesians circa 62-64 AD - 62 AD from Rome
- Paul (Prison Epistle)
Updated Ephesians
Colossians circa 62-64 AD - 62 AD from Rome
- Paul (Prison Epistle)
Philemon circa 62-64 AD - 62 AD from Rome
- Paul (Prison Epistle)
Philippians circa 62-64 AD - 63 AD from Rome
- Paul (Prison Epistle)
I Timothy circa 65-66 AD - 65 AD from Macedonia
Titus circa 65-66 AD - 66 AD from Macedonia
II Timothy circa 67 AD - 67 AD from Rome
Acts of the Apostles
Acts circa 58-65 AD - by Luke
Epistles of Peter
I_Peter circa 60-65 AD - by Peter
II Peter circa 66 AD - by Peter
Epistles of John
I John circa 90-95 AD - by John
II John circa 90-95 AD - by John
III_John circa 90-95 AD - by John
Revelation circa 90-96 AD - by John
Other Epistles
James circa 45 AD - by James
(maybe the half-brother of Jesus)
Jude circa 66-80 AD - by Jude
(maybe also a half-brother of Jesus)
Revelation circa 90-96 AD
That was when the perfect (completed) arrived!