Paul’s frustration:

• Romans 7.28: “Wretched man that I am! Who will deliver me from this body of death?”
• Romans 9.1-3: “I am speaking the truth in Christ—I am not lying; my conscience bears me witness in the Holy Spirit—that I have great sorrow and unceasing anguish in my heart. For I could wish that I myself were accursed and cut off from Christ for the sake of my brothers, my kinsmen according to the flesh.

How God brought about a propitiation in the death of Christ:

• Romans 3.22b-25: “For there is no distinction: for all have sinned and fall short of the glory of God, and are justified by his grace as a gift, through the redemption that is in Christ Jesus, whom God put forward as a propitiation by his blood, through faithfulness.”
• Romans 8.3: “For God has done what the law, weakened by the flesh, could not do. By sending his own Son in the likeness of sinful flesh and for sin, he condemned sin in the flesh”
• Romans 9.22-24: “What if God, desiring to show his wrath and to make known his power, has endured with much patience vessels of wrath prepared for destruction, in order to make known the riches of his glory for vessels of mercy, which he has prepared beforehand for glory—even us whom he has called, not from the Jews only but also from the Gentiles?”