Sforno on Leviticus
ושמרתם את כל חקותי ואת כל משפטי, study them so that you will become aware of how fair they are.
Chizkuni
ושמרתם את כל חקתי, “you are to meticulously observe all My statutes;” this was repeated here once more as it sums up the chapter.
Sforno on Leviticus
ועשיתם אותם, through your study of both My statutes and My social legislation you will become impressed with their worth so that you will observe them and carry them out as a result of having gained greater insight of their meaning.