Hear
shama` (shaw-mah')
to hear intelligently (often with implication of attention, obedience, etc.; causatively, to tell, etc.)
thou my son
ben (bane)
a son (as a builder of the family name), in the widest sense (of literal and figurative relationship, including grandson, subject, nation, quality or condition, etc.
and be wise
chakam (khaw-kam')
exceeding, teach wisdom, be (make self, shew self) wise, deal (never so) wisely, make wiser.
and guide
'ashar (aw-shar')
to be straight (used in the widest sense, especially to be level, right, happy); figuratively, to go forward, be honest, proper
thine heart
leb (labe)
the heart; also used (figuratively) very widely for the feelings, the will and even the intellect
in the way
derek (deh'-rek)
a road (as trodden); figuratively, a course of life or mode of action, often adverb