As Packer says, "the central focus in Christianity is the knowledge ... of Christ crucified." This is a great read by a great Christian for all Christians of today. It comprises 3 sections: 1) the knowledge of Christ crucified; 2) a discourse on Christ our Passover with 3 subsections (Christ is our Passover, Christ is a sacrifice, Christ was sacrificed for us); 3) the voluntariness of Christ's death. As the editor says, "whoso wants to climb Jacob's ladder, to see angels, to touch the stars, to become intoxicated with heavenly emotions, to stand near the Gate of Gethsemane and to have his heart wrung with feelings of adoration at the goodness of God - let him read on." Although first published in 1684 and this edition has been simplified by the explanation of many words and phrases not familiar to the average reader of today, you the reader will be richly rewarded by taking the time and trouble to sit down to learn at the feet of this Puritan about the glories of Christ crucified, our crucified Saviour. Persevere with your reading. Take it slowly and meditate. Well worth buying. A treasure. A classic.