'Understanding' in the Bible

It seemed good to me also, having had perfect understanding of all things from the very first, to write unto thee in order, most excellent Theophilus,

And he will go before Himin the spirit and power of Elijah,to turn the hearts of fathersto their children,and the disobedientto the understanding of the righteous,to make ready for the Lord a prepared people.

And all that heard him were astonished at his understanding and answers.

And Jesus kept increasing in wisdom and in stature, and in favor with God and men.

But the scribes and Pharisees were filled with senseless rage [and lacked spiritual insight], and discussed with one another what they might do to Jesus.

In that hour was Jesus glad in the Spirit, and said, 'I do confess to thee, Father, Lord of the heaven and of the earth, that Thou didst hide these things from wise men and understanding, and didst reveal them to babes; yes, Father, because so it became good pleasure before Thee.

And he answering said, 'Thou shalt love the Lord thy God out of all thy heart, and out of all thy soul, and out of all thy strength, and out of all thy understanding, and thy neighbour as thyself.'

Then opened he their understanding, that they might understand the scriptures,