2corinthians 8 vs 1-24
'We want you to know, brothers, about the grace of God that has been given among the churches of Macedonia, for in a severe test of affliction, their abundance of joy and their extreme poverty have overflowed in a wealth of generosity on their part. For they gave according to their means, as I can testify, and beyond their means, of their own accord, begging us earnestly for the favor of taking part in the relief of the saints— and this, not as we expected, but they gave themselves first to the Lord and then by the will of God to us. '
There is no one that can not participate in this giving. The members of the Macedonian church were not too financially buoyant, but yet they gave.
It's not about the quantity of the gift, but the heart behind the gift.