JMNT(i)
4 You see, as much as was written before was written [leading] into the teaching (the instruction and training) [which is] ours (or: was written unto and for our instruction), to the end that through the persistent remaining-under to give support (the humble yet relentless endurance in handling the blows), and through the calling-alongside of the Scriptures (or: through the Scriptures' comfort, consolation, relief, aid, support and performance as a Paraclete) we may constantly hold expectation (or: have expectant hope).
5 Now may the God of the persistent remaining-under to give support (or: Who has the qualities of this humble, patient and relentless endurance of the blows) and of the calling-alongside for comfort, relief, consolation, aid and support (or: the God Who is humble endurance and is the essence of the performance of a Paraclete) give to (or: grant for) you folks to be constantly mutually disposed (to be minding the same thing; to be of this very opinion) within and among one another, down from (or: in accord with and in the sphere of) Jesus Christ [other MSS: [the] Anointed Jesus; = Jesus the Messiah],