And he shall bring forth thy righteousness as the light, and thy judgment as the noonday.
Tsedeq – righteous – This is the idea of behaving right, walking a straight path, and performing justice.
Ore – light – Refers to light that brings brightness and order, enabling you to see where things are, etc.
Mishpat – judgment – This word involves making a judgment with discretion and according to the law.
Tsohar – noonday – This is a light that shines bright, sometimes described as a double light. A shimmering, glowing olive oil is also involved in this word. It is interesting to note that the olive is crushed before you get to oil. Some roots of this word involve pressing and crushing.
So here is my humble attempt at a better understanding of this verse.