[The
Lord said to Moses] The staff belonging to the man I choose will sprout,
and I will rid myself of this constant grumbling against you*
by the Israelites.
Even
God was tiring of constant grumbling... because grumbling against
Moses is the same as defying God.
Be
careful to not grumble, especially against God's annointed.
*God
doesn't want his children to be hurt by others.