House of Mercy
recap
v.1 after this, passover, jesus back...
The temporal indicator After this is not specific, so it is uncertain how long after the incidents at Cana this occurred.
to read ἑορτή with the article would almost certainly demand a reference to the Jewish Passover
A Jewish feast. Jews were obligated to go up to Jerusalem for 3 major annual feasts: Passover, Pentecost, and Tabernacles. If the first is probably ruled out because of the time of year, the last is not as likely because it forms the central setting for chap. 7
v.2 SETTING THE STAGE...
[Ψ] pc vg); codex D has Belzetha. A lot of controversy has surrounded the name of the pool itself: The reading of the Byzantine (or majority) text (A C Θ 078 f1, 13 𝔐), Bethesda, has been virtually discarded by scholars in favor of what is thought to be the more primitive Bethzatha, even though many recent translations continue to employ Bethesda, the traditional reading. The latter is attested by Josephus as the name of a quarter of the city near the northeast corner of the temple area. He reports that the Syrian Legate Cestius burned this suburb in his attack on Jerusalem in October A.D. 68 (J. W. 2.19.4 [2.530]). However, there is some new archaeological evidence for this problem. 3Q15 (Copper Scroll) from Qumran seems to indicate that in the general area of the temple, on the eastern hill of Jerusalem, a treasure was buried in Betʾ Esdatayin, in the pool at the entrance to the smaller basin. The name of the region or pool itself seems then to have been Bet ᾿Esda, “house of the flowing.” It appears with the dual ending in the scroll because there were two basins. Bethesda seems to be an accurate Greek rendition of the name, while J. T. Milik suggests Bethzatha is a rendition of the Aramaic intensive plural Betʾ Esdata (DJDJ 3, 271). As for the text of John 5:2, the fundamental problems with the Bethesda reading are that it looks motivated (with an edifying Semitic etymology, meaning “House of Mercy” [TCGNT 178]), and is minimally attested. Apart from the Copper Scroll, the evidence for Bethesda is almost entirely shut up to the Byzantine text (C being the most notable exception, but it often has Byzantine encroachments). On the one hand, this argues the Byzantine reading here had ancient, semitic roots; on the other hand, since both readings are attested as historically accurate, a decision has to be based on the better witnesses. The fact that there are multiple readings here suggests that the original was not well understood. Which reading best explains the rise of the others? It seems that Bethzatha is the best choice.
v.3 Many ill folk… physically but also spiritually… more on this later!
v. 4 an angel...
Other MSS include only v. 3b (Ac D 33 lat) or v. 4 (A L it). Few textual scholars today would accept the authenticity of any portion of vv. 3b–4, for they are not found in the earliest and best witnesses (𝔓66, 75 א B C* T pc co)