'Understandeth' in the Bible

When any one heareth the word of the kingdom, and understandeth it not, then cometh the evil one , and snatcheth away that which hath been sown in his heart. This is he that was sown by the way side.

And he that was sown upon the good ground, this is he that heareth the word, and understandeth it; who verily beareth fruit, and bringeth forth, some a hundredfold, some sixty, some thirty.

There is none that understandeth, There is none that seeketh after God;

For he that speaketh in a tongue speaketh not unto men, but unto God; for no man understandeth; but in the spirit he speaketh mysteries.