'Intelligence' in the Bible

When the Sabbath came, He began to teach in the synagogue; and many who listened to Him were astonished, saying, “Where did this man get these things [this knowledge and spiritual insight]? What is this wisdom [this confident understanding of the Scripture] that has been given to Him, and such miracles as these performed by His hands?

and to love him with all the heart, and with all the intelligence, and with all the soul, and with all the strength, and to love one's neighbour as one's self, is more than all the burnt-offerings and sacrifices.