Lay not up for yourselves treasures upon the earth
where moth and rust do corrupt
and where thieves break thru and steal
But lay up for yourselves treasures in heaven
where neither moth nor rust doth corrupt
and where thieves do not break thru nor steal

For where your treasure is
there will be your heart also

No one can serve two masters
for either he will hate the one
and love the other
or else he will be devoted to one
and despise the other

You cannot serve both God and Mammon
Matthew 6: 19-21, 24

Mammon: the false god of riches and avarice