but by equality: your abundance being a supply at this present time for their want, that their abundance also may become a supply for your want; that there may be equality:

At the present time, your surplus will meet their need, so that in turn their surplus will meet your need. Then there will be equality.

but by equality, at the present time your abundance--for their want, that also their abundance may be for your want, that there may be equality,

but [on the principle] of equality; in the present time your abundance for their lack, that their abundance may be for your lack, so that there should be equality.