Вызов методов Context из статичного контекста

public class ApplicationContext extends android.app.Application {
 
    @NotNull
    private static ApplicationContext instance;
 
    public ApplicationContext() {
        instance = this;
    }
 
    @NotNull
    public static ApplicationContext getInstance() {
        return instance;
    }
}

<manifest xmlns:a="http://schemas.android.com/apk/res/android">
 
     <application a:name=".ApplicationContext">
 
        // ...
 
     </application>
 
</manifest>

ApplicationContext.getInstance().getApplicationContext().getString(R.string.your_string_id)

public class ApplicationContext extends android.app.Application {
 
    @NotNull
    private static ApplicationContext instance;
 
    public ApplicationContext() {
        instance = this;
    }
 
    @NotNull
    public static ApplicationContext getInstance() {
        return instance;
    }
}

String mess = ApplicationContext.getInstance().getApplicationContext().getString(R.string.ErrorReadFromDB);

static Context context;
public WorkDB(Context context) {
        super(........);
        WorkDB.context = context;
    }
 
...
...
 
String mess = context.getString(R.string.ErrorReadFromDB);