"Lean not unto thine own understanding." Don't try to understand things; just accept whatever
the bible and your religious leaders tell you. 3:5
"Happy is the man that findeth wisdom, and the man that getteth understanding."
A special anthem was composed from these words for Darwin's funeral at Westminster Abbey. 3:13
"How can a man ... understand his own way?"
Humans can't figure things out on their own. 20:24
"As he thinketh in his heart"
In the Bible, people think with their hearts not with their heads. 23:7
"Yea, my reins shall rejoice." ("Reins" is the Bible's word for kidneys.) 23:16