Apply
bow' (bo)
to go or come (in a wide variety of applications)
thine heart
leb (labe)
the heart; also used (figuratively) very widely for the feelings, the will and even the intellect
unto instruction
muwcar (moo-sawr')
chastisement; figuratively, reproof, warning or instruction; also restraint -- bond, chastening (-eth), chastisement, check, correction, discipline, doctrine, instruction, rebuke.
and thine ears
'ozen (o'-zen)
broadness. i.e. (concrete) the ear (from its form in man) -- + advertise, audience, + displease, ear, hearing, + show.
to the words
'emer (ay'-mer)
something said -- answer, appointed unto him, saying, speech, word.
of knowledge
da`ath (dah'-ath)
knowledge -- cunning, (ig-)norantly, know(-ledge), (un-)awares (wittingly).