Full of the law
If you say, “But he preached Christ in a different manner in his epistles;” I answer, He did not there preach at all: not in that sense wherein we speak: for preaching in our present question, means, speaking before a congregation. But waving this, I answer, 2. His epistles are directed, not to unbelievers, such as those we are now speaking of, but to the saints of God in Rome, Corinth, Philippi and other places. Now unquestionably he would speak more of Christ to these, than to those who were without God in the world. And yet, 3. Everyone of these is full of the law, even the epistles to the Romans and the Galatians: in both of which he does what you term preaching the law, and that to believers as well as unbelievers.
1771 text
9. If you say, “But he preached Christ in a different manner in his epistles;” I answer, He did not there preach at all: not in that sense wherein we speak: for preaching in our present question, means, speaking before a congregation. But waving this, I answer, 2. His epistles are directed, not to unbelievers, such as those we are now speaking of, but to the saints of God in Rome, Corinth, Philippi and other places. Now unquestionably he would speak more of Christ to these, than to those who were without God in the world. And yet, 3. Every one of these is full of the law, even the epistles to the Romans and the Galatians: in both of which he does what you term preaching the law, and that to believers as well as unbelievers.