Reuben
R'uwben (reh-oo-bane')
see ye a son; Reuben, a son of Jacob -- Reuben.
thou art my firstborn
bkowr (bek-ore')
firstborn; hence, chief -- eldest (son), firstborn(-ling).
my might
koach (ko'-akh)
from an unused root meaning to be firm; vigor, literally (force, in a good or a bad sense) or figuratively (capacity, means, produce); also (from its hardiness) a large lizard
and the beginning
re'shiyth (ray-sheeth')
the first, in place, time, order or rank (specifically, a firstfruit) -- beginning, chief(-est), first(-fruits, part, time), principal thing.
of my strength
'own (one)
ability, power, (figuratively) wealth -- force, goods, might, strength, substance.
the excellency
yether (yeh'-ther)
an overhanging, i.e. (by implication) an excess, superiority, remainder; also a small rope (as hanging free)
of dignity
s'eth (seh-ayth')
an elevation or leprous scab; figuratively, elation or cheerfulness; exaltation in rank or character -- be accepted, dignity, excellency, highness, raise up self, rising.
and the excellency
yether (yeh'-ther)
an overhanging, i.e. (by implication) an excess, superiority, remainder; also a small rope (as hanging free)
of power
`az (az)
strong, vehement, harsh -- fierce, + greedy, mighty, power, roughly, strong.