Wisdom – the quality of having experience, knowledge and good judgment (source: Google).
Understanding – comprehension, grasp, mastery, appreciation (source: Google).
Get wisdom! Get understanding! Do not forget, nor turn away from the words of my mouth. Wisdom is the principal thing; Therefore get wisdom. And in all your getting, get understanding. Exalt her, and she will promote you; She will bring you honor, when you embrace her. She will place on your head an ornament of grace; A crown of glory she will deliver to you.” Hear, my son, and receive my sayings, And the years of your life will be many. I have taught you in the way of wisdom; I have led you in right paths. When you walk, your steps will not be hindered, And when you run, you will not stumble. Take firm hold of instruction, do not let go; Keep her, for she is your life. Do not enter the path of the wicked, And do not walk in the way of evil. Avoid it, do not travel on it; Turn away from it and pass on. For they eat the bread of wickedness, And drink the wine of violence.
But the path of the just is like the shining sun, That shines ever brighter unto the perfect day.
Proverbs 4:5, 7-15, 17-18 NKJV