But God demonstrates his own love for us in this: While we were still sinners, Christ died for us.

Can any one be saved through the covenant of works? None can be saved through the covenant of works. Why can none be saved through the covenant of works? Because all have broken it, and are condemned by it.

With whom did God the Father make the covenant of grace? With Christ, his eternal Son. Whom did Christ represent in the covenant of grace? His people.