But call to remembrance the former days, in which, after ye were enlightened, ye endured a great conflict of sufferings;

Remember the early days that you were in the light. In those days, you endured a great conflict in the face of suffering.

And call to your remembrance the former days, in which, having been enlightened, ye did endure much conflict of sufferings,

But call to mind the earlier days in which, having been enlightened, ye endured much conflict of sufferings;