Thy first
ri'shown  (ree-shone')
first, in place, time or rank (as adjective or noun) -- ancestor, (that were) before(-time), beginning, eldest, first, fore(-father) (-most), former (thing), of old time, past.
'ab  (awb)
father, in a literal and immediate, or figurative and remote application) -- chief, (fore-)father(-less), patrimony, principal. Compare names in Abi-.
hath sinned
chata'  (khaw-taw')
to miss; hence (figuratively and generally) to sin; by inference, to forfeit, lack, expiate, repent, (causatively) lead astray, condemn
and thy teachers
luwts  (loots)
ambassador, have in derision, interpreter, make a mock, mocker, scorn(-er, -ful), teacher.
have transgressed
pasha`  (paw-shah')
to break away (from just authority), i.e. trespass, apostatize, quarrel -- offend, rebel, revolt, transgress(-ion, -or).
against me