'what are the people going to tithe if they have nothing?'I can only speak of the UK where those who are usually classified as 'poor' are the unemployed. Living on benefits there are very few without TV; DVD player; all modern electrical gadgets- including a mobile phone etc. Food and clothing isn't a problem either.
There are though poor christian people in the UK-they rely upon God to meet their needs as EVEN some professing christians are far more concerned about the unnecessary riches of this life than their christian brethren! Do believers have their priorities right? The poor christian who will tithe from their small earnings and still give love gifts-is usualy the one who will also give the widows mite (all that they possess). They also know the real blessing of the Lord.
Instead of getting angry with the supposed 'legalists' who first tithe and then have a heart also to give all that they have-it is better to examine our own giving and see if we in our generosity even give as much as the tithe of the 'legalist'
A good beginning............
'Tithing' a well written 2 page article by A W Pink http://www.pbministries.org/books/pink/Tithing/tithing.htm