The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from King James Bible:
observe to do according to all that they inform thee:
DEU 17:11 According to the sentence of the law which they shall teach
thee, and according to the judgment which they shall tell thee, thou
shalt do: thou shalt not decline from the sentence which they shall shew
thee, to the right hand, nor to the left.
DEU 17:12 And the man that will do presumptuously, and will not hearken
unto the priest that standeth to minister there before the LORD thy God,
or unto the judge, even that man shall die: and thou shalt put away the
evil from Israel.
DEU 17:13 And all the people shall hear, and fear, and do no more
King James Bible