Mk 6:7-13
 
Jesus summoned the Twelve and began to send them out two by two
and gave them authority over unclean spirits.
He instructed them to take nothing for the journey
but a walking stick—
no food, no sack, no money in their belts.
They were, however, to wear sandals
but not a second tunic.
He said to them,
“Wherever you enter a house, stay there until you leave.
Whatever place does not welcome you or listen to you,
leave there and shake the dust off your feet
in testimony against them.”
So they went off and preached repentance.
The Twelve drove out many demons,
and they anointed with oil many who were sick and cured them.
 
From catholic-daily-reflections.com:
Sometimes it can happen that we fail to realize how completely God cares for us. We can fall into the trap of getting consumed by the fear and anxiety of daily concerns. We can worry that we will not have enough for tomorrow or even today. This worry can concern us regarding all parts of our lives—relationships, emotions, material needs, spiritual strength, etc.
 
What we need to know, with complete certainty, is that God is attentive to every detail of our lives. He knows all and loves us in such a complete way that He will not abandon us ever. He will never allow us to be without those things we need to live a full and fruitful life.
 
Do you believe that? At times it can be hard to believe. At times we can feel overwhelmed and believe that we must take care of everything ourselves. It is true that we are called to offer all our energy and talent to God so that He can use us and work through us. But we should never forget that God is ultimately the one taking care of us and is the one most attentive to our every need.