It is impossible to define a complex thought with one sentence. Even the previous sentence demands further information. What kind of thoughts do I mean? What is the reasoning for saying such a thing? Context adds further information to the reasoning behind such a statement. It also sets the stage for the real reason for the statement or provokes further thought.
If one considers the previous paragraph to be accurate in its message, then one should not settle for a single verse to explain a complex doctrine, such as salvation.