Is it a Sin to hoard “church money”?

Let’s say you have a nice facility, no debt, all bills paid when they come in, etc. Over the years you have managed to build up cash reserves of nearly three hundred thousand dollars. You have no community outreach to speak of, do not support cog missions works except for when headquarters strongly urges the church to do so. The pastor has made it clear that all monies are under his control and therefore are to be saved “just in case”. What are your thoughts on this? Would Jesus approve of the church not reaching out to a desperate group of families or the community when there are ample funds to do so? Is it “ok” to hoard what is essentially God’s money?