that to whom ye yield yourselves servants to obey - with the view of obeying him.
his servants ye are to whom ye obey - to whom ye yield that obedience.
whether of Sin unto death - that is, “issuing in death,” in the awful sense of Rom 8:6, as the sinner’s final condition.
or of Obedience unto righteousness - that is, obedience resulting in a righteous character, as the enduring condition of the servant of new Obedience (1Jo 2:17; Joh 8:34; 2Pe 2:19; Mat 6:24).