luke 10:42 But one thing is needful: and Mary hath chosen that good part, which shall not be taken away from her. - Free Bible Online

      42. one thing, &c.--The idea of "Short work and little of it suffices for Me" is not so much the lower sense of these weighty words, as supposed in them, as the basis of something far loftier than any precept on economy. Underneath that idea is couched another, as to the littleness both of elaborate preparation for the present life and of that life itself, compared with another.
      chosen the good part--not in the general sense of Moses' choice (Heb 11:25), and Joshua's (Jos 24:15), and David's (Ps 119:30); that is, of good in opposition to bad; but, of two good ways of serving and pleasing the Lord, choosing the better. Wherein, then, was Mary's better than Martha's? Hear what follows.
      not be taken away--Martha's choice would be taken from her, for her services would die with her; Mary's never, being spiritual and eternal. Both were true-hearted disciples, but the one was absorbed in the higher, the other in the lower of two ways of honoring their common Lord. Yet neither despised, or would willingly neglect, the other's occupation. The one represents the contemplative, the other the active style of the Christian character. A Church full of Marys would perhaps be as great an evil as a Church full of Marthas. Both are needed, each to be the complement of the other.

JFB.