J.C. Ryle: Salvation

"Look to your foundation, if you would know whether or not you are a member of the one true Church.  It is a point that may be known to yourself.  Your public worship we can see; but we cannot see whether you are personally built upon the rock.  Your attendance at the Lord's table we can see; but we cannot see whether you are joined to Christ, and one with Christ, and Christ in you.  Take heed that you make no mistake about your own personal salvation.  See that your own soul is upon the rock.  Without this, all else is nothing.  Without this, you will never stand in the day of judgment.  Better a thousand times in that day to be found in a cottage 'upon the rock,' than in a palace upon the sand!"