| Quote #7
I wol persevere, I nam nat precious.
The "instrument" to which the Wife refers here is her vagina. Her claim that she will "use" it styles her as the master of her own toolkit, which contrasts with her projection that her husband shall "have," or possess it just a few lines later.
| Quote #8
An housbonde I wol have, I wol nat lette,
By describing the sex act as tribulations upon the flesh, the Wife aligns sex with the suffering of Christ and martyrs, which was often referred to with this kind of language. The Wife seems to be suggesting that the endurance of a wife's desires can be a way of suffering for Christ. She brings up this idea again when she claims that her torment of her fourth husband probably saved him time in Purgatory.
| Quote #9
The three men were gode, and riche, and olde;
Here the Wife corroborates her prior claim to use her "instrument" as freely as God sent it, describing how she had no pity on the sexual fatigue of her elderly husbands.