He does not deny it
I therefore no more deny the righteousness of Christ than I deny the godhead of Christ. And a man may just as justly charge me with denying the one as the other. Neither do I deny imputed righteousness. This is another unkind and unjust accusation. I always did, and do still continually affirm, that the righteousness of Christ is imputed to every believer. But who deny it. All infidels, whether baptized or unbaptized. All who affirm the glorious gospel of our Lord Jesus Christ to be a cunningly devised fable (2 Peter 1:16). All Socinians and Arians. All who deny the supreme godhead of the Lord who bought them (2 Peter 2:1). They, of consequence, deny his divine righteousness, as they suppose him to be a mere creature. And they deny his human righteousness as imputed to any man, seeing they believe everyone is accepted for his own righteousness.
1771 text
14. I therefore no more deny the righteousness of Christ, than I deny the godhead of Christ. And a man may full as justly charge me with denying the one as the other. Neither do I deny imputed righteousness: this is another unkind and unjust accusation. I always did, and do still continually affirm, That the righteousness of Christ is imputed to every believer. But who do deny it? Why all infidels, whether baptized or unbaptized: all who affirm the glorious gospel of our Lord Jesus Christ to be a cunningly devised fable. All Socinians and Arians; all who deny the supreme godhead of the Lord that bought them. They of consequence deny his divine righteousness, as they suppose him to be a mere creature. And they deny his human righteousness, as imputed to any man, seeing they believe every one is accepted for his own righteousness.