Hebrews  7:23-28. Chiastic structure copied from Chiastic Analysis of the Epistle to the Hebrews,  arranged by John Bligh (Athenaeum Press, Heythrop College, Oxon, England: 1966). Bligh's work is almost entirely in Greek. For website purposes, I have used unaccented Greek from the Unbound Bible, Nestle-Aland 26, at unbound.biola.edu
I have added English from the New American Standard Bible, revised.

A 23 kai oi men pleioneV eisin gegonoteV iereiV 
The former priests, on the one hand, existed in greater numbers 

dia to qanatw kwluesqai paramenein
because they were prevented by death from continuing,

24 o de dia to menein auton eiV ton aiwna 
but Jesus, on the other hand, because He continues forever, 

aparabaton ecei thn ierwsunhn  holds His priesthood permanently.

B 25 oqen kai swzein eiV to panteleV dunatai touV prosercomenouV 
Therefore He is able also to save forever those who draw near 

di autou tw qew  pantote zwn eiV to entugcanein uper autwn
to God through Him, since He always lives to make intercession for them.

26 toioutoV gar hmin kai eprepen arciereuV osioV akakoV amiantoV
For it was fitting for us to have such a high priest, holy, innocent, undefiled, 

C  kecwrismenoV apo twn amartwlwn  separated from sinners 
C* kai uyhloteroV twn ouranwn genomenoV and exalted above the heavens;
B* 27 oV ouk ecei kaq hmeran anagkhn wsper oi arciereiV 
who does not need daily, like those high priests, 

proteron uper twn idiwn amartiwn qusiaV anaferein epeita twn tou laou touto
to offer up sacrifices, first for His own sins and then for the sins of the people, 

gar epoihsen efapax eauton anenegkaV
because this He did once for all when He offered up Himself.

A* 28 o nomoV gar anqrwpouV kaqisthsin arciereiV econtaV asqeneian 
For the Law appoints men as high priests who are weak, 

o logoV de thV orkwmosiaV thV meta ton nomon uion eiV ton aiwna teteleiwmenon
but the word of the oath, which came after the Law, appoints a Son, made perfect forever.

Note: verse 28 is also in the next chiasm