Thou whom I have taken
chazaq  (khaw-zak')
to fasten upon; hence, to seize, be strong (figuratively, courageous, causatively strengthen, cure, help, repair, fortify), obstinate; to bind, restrain, conquer
from the ends
qatsah  (kaw-tsaw')
a termination -- coast, corner, (selv-)edge, lowest, (uttermost) participle
of the earth
'erets  (eh'-rets)
the earth (at large, or partitively a land) -- common, country, earth, field, ground, land, natins, way, + wilderness, world.
and called
qara'  (kaw-raw')
to call out to (i.e. properly, address by name, but used in a wide variety of applications)
thee from the chief men
'atsiyl  (aw-tseel')
an extremity (Isa. 41:9), also a noble -- chief man, noble.
thereof and said
'amar  (aw-mar')
to say (used with great latitude)
unto thee Thou art my servant
`ebed  (eh'-bed)
a servant -- bondage, bondman, (bond-)servant, (man-)servant.
I have chosen
bachar  (baw-khar')
to try, i.e. (by implication) select -- acceptable, appoint, choose (choice), excellent, join, be rather, require.
thee and not cast thee away
ma'ac  (maw-as')
to spurn; also (intransitively) to disappear