Love worketh no ill to his neighbour: therefore love is the fulfilling of the law.
Love does no wrong to one's neighbor [it never hurts anybody]. Therefore love meets all the requirements and is the fulfilling of the Law.
Love worketh no ill to his neighbor: love therefore is the fulfilment of the law.
Love doesn’t do anything wrong to a neighbor; therefore, love is what fulfills the Law.
The love of neighbor does no harm. Therefore, love is the plenitude of the law.