Do not worry about your life, what you will eat or drink, ..

There is a popular mantra which goes:

'Be greedy when others are fearful, and fearful when others are greedy'.

But I think God says greed is always a sin.  Greed is taking more than you need.  In the 'Our Father' it says to pray: 'Give us each day our daily bread'.  God's people rely on God's grace for their daily bread just as the birds do. 

Jesus said "Do not worry about your life, what you will eat or drink; or about your body, what you will ear.  Is not life more than food, and the body more than clothes?  Look at the birds of the air; they do not sow or reap or store away in barns, and yet your heavenly Father feeds them.  Are you not much more valuable than they?  Can any one of you by worrying add a single hour to your life?" - Matthew 6:25-26

'Watch out! Be on your guard against all kinds of greed; life does not consist in an abundance of possessions' - Luke 12:15