“Being then made free from sin.” That is, as a master. You are not under its dominion; you are no longer its slaves. They were made free, as a servant is who is set at liberty, and who is, therefore, no longer under obligation to obey.
Ye became the servants ... - You became voluntarily under the dominion of righteousness; you yielded yourselves to it; and are therefore bound to be holy; compare the note at John 8:32.