So we have some interesting responses.
For now I am going to write out the six verses for reading.
"Or are you ignorant, brothers (for I speak to those who know the law), that the law lords it over the man as long as he lives ? (v1)
for the married woman is bound by the law to her husband while he is living; but if the husband dies, she is discharged from the law regarding the husband. " (v.2)
Read this much again, Let it sink in.
Go on.
"So then if, while the husband is living, she is joined to another man, she will be called an adulteress, but if the husband dies, she is free from the law, so that she is not an adulteress, though she is joined to another man. (v.3)
So then, my brothers, you also have been made dead to the law through the body of Christ so that you might be joined to another, to Him who has been raised from the dead, that we might bear fruit to God. (v.4)
Please read it again carefully. This is very profound. It is not easy to grasp Paul's teaching here.
On to the end -
" For when we were in the flesh, the passions for sins, which acted through the law, operated in our members to bear fruit to death. (v.5)
But now we have been discharged from the law, having died to that in which we were held, so that we serve in newness of spirit and not in oldness of letter." (v.6)
In getting into the understanding of a difficult passage like this first you have to gather all the facts. You have to get all the facts taught in the passage.
1.) How many husbands are involved ?
2.) Who has died?
3.) Died to who ?
4.) How many are said to have died or made dead ?
4.) Died to what ?
5.) The one or ones who died, how did death come ?
6.) Who is the wife here ?
Just gather the facts as best as you can.