Deuteronomy 17:10

10 And thou shalt act according to the thing which they shall report to thee out of the place which the Lord thy God shall choose, and thou shalt observe to do all whatsoever shall have been by law appointed to thee.

Deuteronomy 17:10 Meaning and Commentary

Deuteronomy 17:10

And thou shalt do according to the sentence which they of that
place which the Lord shall choose shall show thee
The judges of the inferior courts were to return and proceed on the difficult case according to the judgment of the great court at Jerusalem, and follow the directions and instructions they should give them:

and thou shalt observe to do according to all that they inform thee;
not only observe and take notice of what they say, but put it in practice, and not in some things and some circumstances only, but in all and everything they should give them information about relating to the case in question.

Deuteronomy 17:10 In-Context

8 And if a matter shall be too hard for thee in judgment, between blood and blood, and between cause and cause, and between stroke and stroke, and between contradiction and contradiction, matters of judgment in your cities;
9 then thou shalt arise and go up to the place which the Lord thy God shall choose, and thou shalt come to the priests the Levites, and to the judge who shall be in those days, and they shall search out and report the judgment to thee.
10 And thou shalt act according to the thing which they shall report to thee out of the place which the Lord thy God shall choose, and thou shalt observe to do all whatsoever shall have been by law appointed to thee.
11 Thou shalt do according to the law and to the judgment which they shall declare to thee: thou shalt not swerve to the right hand or to the left from any sentence which they shall report to thee.
12 And the man whosoever shall act in haughtiness, so as not to hearken to the priest who stands to minister in the name of the Lord thy God, or the judge who shall preside in those days, that man shall die, and thou shalt remove the evil one out of Israel.

The Brenton translation of the Septuagint is in the public domain.