Treasury of Scripture
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
Numbers 1:18 And they assembled all the congregation together on the first day of the second month...
he would increase
Genesis 15:5 And he brought him forth abroad, and said, Look now toward heaven, and tell the stars, if you be able to number them...
Hebrews 11:12 Therefore sprang there even of one, and him as good as dead, so many as the stars of the sky in multitude...