'Understand' in the Bible

Therefore know and understand today, and take it to your heart, that the Lord is God in the heavens above and on the earth below; there is no other.

Therefore know [without any doubt] and understand that the Lord your God, He is God, the faithful God, who is keeping His covenant and His [steadfast] lovingkindness to a thousand generations with those who love Him and keep His commandments;

He humbled you and let you be hungry, and fed you with manna which you did not know, nor did your fathers know, that He might make you understand that man does not live by bread alone, but man lives by everything that proceeds out of the mouth of the Lord.

Understand therefore this day, that the LORD thy God is he which goeth over before thee; as a consuming fire he shall destroy them, and he shall bring them down before thy face: so shalt thou drive them out, and destroy them quickly, as the LORD hath said unto thee.

Understand therefore, that the LORD thy God giveth thee not this good land to possess it for thy righteousness; for thou art a stiffnecked people.

You must understand today that it is not your children who experienced or saw the discipline of the Lord your God:His greatness, strong hand, and outstretched arm;

The LORD shall bring a nation against thee from far, from the end of the earth, as swift as the eagle flieth; a nation whose tongue thou shalt not understand;

it will be a nation whose language you don't understand, whose stern appearance neither shows regard nor extends grace to anyone whether old or young.

Yet to this day the Lord has not given you a mind to understand, eyes to see, or ears to hear.

Remember days of old -- Understand the years of many generations -- Ask thy father, and he doth tell thee; Thine elders, and they say to thee:

He findeth him in a land -- a desert, And in a void -- a howling wilderness, He turneth him round -- He causeth him to understand -- He keepeth him as the apple of His eye.

If only they were wise, they would figure it out;they would understand their fate.