Irenaeus does not simply parrot back the message of Paul in his understanding of salvation. One of the major changes that Irenaeus makes is when the Parousia will occur. Paul states that he believes that it was going to happen soon, probably in his own lifetime 1 Thess. 4:15 1 Cor. 15:51–52. However, the end times does not happen immediately and Christians begin to worry and have doubts about the faith. For Irenaeus, sin is seen as haste, just as Adam and Eve quickly ate from the tree of knowledge as they pleased. On the other hand, redemption restored to humanity through the Christ's submission to God's will. Thus, the salvation of man will also be restored to the original trajectory controlled by God forfeited in humanity's sinful in haste. This rather slower version of salvation is not something that Irenaeus received from Paul, but was a necessary construct given the delay of the second coming of Jesus.