The Lamb slain from the foundation of the world.
Christ’s fitness to save — he is a fit Saviour, suited to the work because he unites of the natures of God and man in one person and thus able to be a Saviour to the uttermost. He lays his hand upon God, by partaking of his nature, Col.2:9; and he lays his hand upon us, by being partaker of our nature, Heb. 2:14, 16: and so becomes an umpire (THE ONLY MEDIATOR) between both (I Tim.2:5). By this means he fills up all the distance that was made by sin between God and us; and we who were far off are made nigh in him. Upon this account it was that he had room enough in his breast to receive, and power enough in his spirit to bear, all the wrath that was prepared for us. Sin was infinite only in respect of the object (against the infinite God); and punishment was infinite in respect of the subject (Christ). This ariseth from his union. Union is the conjunction of the two natures of God and man in one person, John 1:14, Isa. 9:6, Rom. 1:3, 9: 5. The ONLY SAVIOUR of men (Acts 4:12).
Adapted from John Owen’s “Communion with the Triune God”.