The path of the righteous is like the morning sun, shining ever brighter till the full light of day.
OJBBut the orach tzaddikim (path of the righteous) is as the bright light, that shineth brighter and brighter unto the full day.
RVBut the path of the righteous is as the shining light, that shineth more and more unto the perfect day.
T4TThe behavior of good/righteous people is like the light that begins to shine at dawn and then continues to shine brighter until the brightest time of day.