Tertullian

For he in a previous verse ascribed sin to the flesh, and made it out to be "the law of sin dwelling in his members," and "warring against the law of the mind." On this account, therefore, (does he mean to say that) the Son was sent in the likeness of sinful flesh, that He might redeem this sinful flesh by a like substance, even a fleshly one, which bare a resemblance to sinful flesh, although it was itself free from sin.