Berean Study Bible
Now we know that the law is good, if one uses it legitimately.

King James Bible
But we know that the law is good, if a man use it lawfully;

American Standard Version
But we know that the law is good, if a man use it lawfully,

Darby Bible Translation
Now we know that the law [is] good if any one uses it lawfully,

Douay-Rheims Bible
But we know that the law is good, if a man use it lawfully:

English Revised Version
But we know that the law is good, if a man use it lawfully,

Young's Literal Translation
and we have known that the law is good, if any one may use it lawfully;