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.
keep
natsar (naw-tsar')
to guard, in a good sense (to protect, maintain, obey, etc.) or a bad one (to conceal, etc.)
thy father's
'ab (awb)
father, in a literal and immediate, or figurative and remote application) -- chief, (fore-)father(-less), patrimony, principal. Compare names in Abi-.
commandment
mitsvah (mits-vaw')
a command, whether human or divine (collectively, the Law) -- (which was) commanded(-ment), law, ordinance, precept.
and forsake
natash (naw-tash')
cast off, drawn, let fall, forsake, join (battle), leave (off), lie still, loose, spread (self) abroad, stretch out, suffer.
not the law
towrah (to-raw')
a precept or statute, especially the Decalogue or Pentateuch -- law.
of thy mother
'em (ame)
a mother (as the bond of the family); in a wide sense (both literally and figuratively) -- dam, mother, parting.