The LBC says...
A.A.Hodge in his commentary on the WCF:
If Christ's sufferings were incidental elements of the wrath of God which he bore as the surety of the elect, then why must the elect still suffer in this life?
LBC 8:4 This office the Lord Jesus did most willingly undertake, which that he might discharge he was made under the law, and did perfectly fulfil it, and underwent the punishment due to us, which we should have borne and suffered, being made sin and a curse for us; enduring most grievous sorrows in his soul, and most painful sufferings in his body; was crucified, and died, and remained in the state of the dead, yet saw no corruption: on the third day he arose from the dead with the same body in which he suffered, with which he also ascended into heaven, and there sitteth at the right hand of his Father making intercession, and shall return to judge men and angels at the end of the world.
A.A.Hodge in his commentary on the WCF:
(3) His undergoing the miseries of this life, the wrath of God, and the cursed death of the cross. Christ was the representative of his people, and all his obedience and suffering was vicarious, from his birth until all the conditions of the covenant of life were fulfilled. All his earthly career was in one aspect suffering, in another aspect obedience. As suffering, it was a vicarious endurance of the penalty of sin. As obedience, it was the discharge in the stead and behalf of his people of that condition upon which their eternal inheritance is suspended. The two were never separated in fact. They are only the two legal aspects presented by the same life of suffering obedience. The essence of the penalty vicariously borne by Christ was "the wrath of God." The incidents of it were "the miseries of this life." The culmination of it was "the cursed death of the cross," (Gen. 2:17; Heb. 9:22.)
If Christ's sufferings were incidental elements of the wrath of God which he bore as the surety of the elect, then why must the elect still suffer in this life?