A righteous person leads a blameless life. Thus, the term righteous person (saddiq in Hebrew) is defined in the first half of this proverb. Blameless life (hom in Hebrew) is continued integrity and perfect living as revealed by God in the Bible. The Bible presents how God intended life to be when he created it. To live according to the way things are designed is easier and better than to live as opposed to the way life and nature are designed.
A person who works with wood follows the same principle. Trees are made with grain and structure. To make a sturdy and elegant piece of furniture a master carpenter goes with the grain, not against it. A good carpenter works wood properly by recognizing how it grew and what type of tree it was; whether pine, oak, cherry, or some other wood. He takes note of each piece’s knots, twists, and defects and works with them. One could say that such a craftsman is a righteous carpenter.
Living a blameless life, that is according to God’s design finds benefit beyond self. Blessed are the children of the righteous. God blesses them. God blesses his people when he bestows on them some gift temporal or spiritual (Genesis 1:22, 24:35; Job 42:12, Psalm 45:2, 104:24, 35) He holds victory in store for the upright. (2:7) “He who fears the LORD has a secure fortress, and for his children it will be a refuge.” (14:26)