For our justification (dia thn dikaiwsin hmwn). The first clause (paredoqh dia ta paraptwmata) is from Isaiah 53:12 . The first dia with paraptwmata is probably retrospective, though it will make sense as prospective (to make atonement for our transgressions). The second dia is quite clearly prospective with a view to our justification. Paul does not mean to separate the resurrection from the death of Christ in the work of atonement, but simply to show that the resurrection is at one with the death on the Cross in proof of Christ's claims.