Ib. s. 31. p. 659-661.

But we say, our salvation is by Christ alone; therefore howsoever, or
whatsoever, we add unto Christ in the matter of salvation, we
overthrow Christ. Our case were very hard, if this argument, so
universally meant as it is proposed, were sound and good. We ourselves
do not teach Christ alone, excluding our own faith, unto
justification; Christ alone, excluding our own work, unto
sanctification; Christ alone, excluding the one or the other as
unnecessary unto salvation. ... As we have received, so we teach that
besides the bare and naked work, wherein Christ, without any other
associate, finished all the parts of our redemption and purchased
salvation himself alone; for conveyance of this eminent blessing unto
us, many things are required, as, to be known and chosen of God
_before_ the foundations of the world; _in_ the world to be called,
justified, sanctified; _after_ we have left the world to be received
into glory; Christ in every of these hath somewhat which he worketh
alone. &c. &c.

No where out of the Holy Scripture have I found the root and pith of
Christian faith so clearly and purely propounded as in this section.
God, whose thoughts are eternal, beholdeth the end, and in the completed
work seeth and accepteth every stage of the process. I dislike only the
word 'purchased;'--not that it is not Scriptural, but because a metaphor
well and wisely used in the enforcement and varied elucidation of a
truth, is not therefore properly employed in its exact enunciation. I
will illustrate, amplify and _divide_ the word with Paul; but I will
propound it collectively with John. If in this admirable passage aught
else dare be wished otherwise, it is the division and yet confusion of
time and eternity, by giving an anteriority to the latter.