A.T. Robertson Commentary Romans 6:21

"What fruit then had ye at that time in the things whereof ye are now ashamed? for the end of those things is death." — Romans 6:21 (ASV)

What fruit then had ye at that time? (τινα ουν καρπον ειχετε τοτε?). Imperfect active, used to have. A pertinent question. Ashes in their hands now. They are ashamed now of the memory of them. The end of them is death.