How to render objects in XNA currently?

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XNA4.0

I Programmed a game in XNA that there are many boxes. If we assume that the box 2 is placed on (0,0,0) and Box 1 is placed on (0,0,1) when I placed a camera on (0,0,3) and looking at -Z direction (looking at the boxes), Unfortunately I will see that the Box 2 is in front of box 1.
as you see this is in correct.
Here is my codes

protected override void Draw(GameTime gameTime)
       {
           GraphicsDevice.Clear(Color.DarkGray);
           spriteBatch.Begin();

           for (int i = 0; i < Box.Count; i++)
               Box[i].Draw(ref graphics);

           spriteBatch.End();

           base.Draw(gameTime);
       }

Would you please help me.