But I don't have much! 

Fulfill according to what you have

2  Corinthians 8:11  Now therefore perform the doing of it; that as there was a readiness to will, so there may be a performance also out of that which ye have. 12 For if  there be first a willing mind, it is accepted according to that a man hath, and not according to that he hath not. 13 For I mean not that other men be eased, and ye burdened: 14  But by an equality, [that] now at this time your abundance [may be a supply] for their want, that their abundance also may be [a supply] for your want: that there may be equality:  15  As it is written, He that [had gathered] much had nothing over; and he that [had gathered] little had no lack.