* David took not.
   It seems probable, from this passage, that Joab began, by
   David's order, to number the children, as well as adults, but
   was prevented from finishing the account, probably because the
   plague had begun.  The numbering of the effective men might
   have been deemed a political expedient; but pride and
   ostentation alone could dictate the numbering of minors and
   infants, especially as God had pronounced the seed of Abraham,
   Isaac, and Jacob, innumerable.

 * from twenty.
  Nu 1:18 
 * he would increase.
  Ge 15:5  Heb 11:12