Every blow of the hammer is to fasten the nails of the building; so the preacher’s words are to fasten you the more to Christ; they weaken themselves to strengthen and settle you.

From Colossians 1:23:  “Provided that you continue securely established and steadfast in the faith, without shifting from the hope promised by the gospel that you heard, which has been proclaimed to every creature under heaven. I, Paul, became a minister of this gospel.”

Thomas Watson (1620-1686) was an English Puritan preacher and Christian author.