Jesus wanted the men to know that God
would provide for those working for Him
and He would bless those who gives and
supports His ministry.

Later when they returned, they were
so very blessed that they were carrying
a purse. So Jesus reminded them that
He had told them not to carry one but
that now He would allow it.

In Matthew 10:16 Jesus warns against
carelessness. They would be among
wolves "be ye therefore, wise as serpents,
and harmless as doves." They were to
use wisdom.