A brother
'ach (awkh)
a brother (used in the widest sense of literal relationship and metaphorical affinity or resemblance (like 1) -- another, brother(-ly); kindred, like, other.
offended
pasha` (paw-shah')
to break away (from just authority), i.e. trespass, apostatize, quarrel -- offend, rebel, revolt, transgress(-ion, -or).
is harder to be won than a strong
`oz (oze)
strength in various applications (force, security, majesty, praise) -- boldness, loud, might, power, strength, strong.
city
qiryah (kir-yaw')
a city -- city.
and their contentions
midyan (mid-yawn')
brawling, contention(-ous).
madown (maw-dohn')
a contest or quarrel -- brawling, contention(-ous), discord, strife.
are like the bars
briyach (ber-ee'-akh)
a bolt -- bar, fugitive.
of a castle
'armown (ar-mone')
a citadel (from its height) -- castle, palace.