'Knowledge' in the Bible

Then she fell on her face, and bowed herself to the ground, and said unto him, Why have I found favor in thy sight, that thou shouldest take knowledge of me, seeing I am a foreigner?

And her mother-in-law said unto her, Where hast thou gleaned to-day? and where hast thou wrought? blessed be he that did take knowledge of thee. And she showed her mother-in-law with whom she had wrought, and said, The man's name with whom I wrought to-day is Boaz.