Is God the God of everything, including and especially of money, in our lives?

"
A boy on his way to church had two quarters. One for the offering and the other for a candy bar. While crossing the street he tripped and fell, and one of his quarters went rolling out of his hand and into the sewer, ker-plunk. Later he told his father what had happened.

'Did you put the other quarter in the offering?' his father asked. 'No,' the boy said, 'God's quarter went down the sewer.'
"

~ Haddon W. Robinson, "The Christian Salt and Light Company"

What would I do in such a situation? Would I prioritise giving to God or would I prioritise buying that nice thing that I do not really need?