If you were called to be a missionary today, would you ask for money? -Jake Ray on Facebook
My wife and I have been "missionaries" among the homeless for 15 years now, with my wife working one day a week on minimum wage. But we NEVER asked anyone for money. The Lord is our employer and so He pays our wages. We do not ask the government or the church to pay that which is His responsibility. When we get donations, it is because the Lord stirs people's hearts through the Spirit and He provides abundantly.
The church has a huge number of resources, both financially and otherwise. And I don't believe the NT teaches tithing, and even if tithing were great (50% or more) I think that most churches don't have their priorities correct. Jesus commands us to give to those in need, especially those doing His work (Luke 12:33; Matt 10:10; Galatians 6:6-10). But the churches seem to think that their main responsibility is a huge salary for their pastor and a huge building. God's people need to re-prioritize toward those in need, without judging, without hoops.