It is because there is no elect content in the entire chapter I’ll have just to disregard this.
Agreed is that the atonement essentially means reconciliation. However, I disagree that reconciliation occurs before faith. God’s plan provided atonement, reconciling enemies to friends, resulting in peace with Him.
Romans 5:1-2
King James Version
5 Therefore being justified by faith, we have peace with God through our Lord Jesus Christ:
2 By whom also we have access by faith into this grace wherein we stand, and rejoice in hope of the glory of God.
Atonement, reconciliation, justification, and salvation occur through faith in Christ. Faith is the instrumentality. Consequently, justification, atonement, reconciliation, and salvation follow the exercise of faith. Even the meaning of atonement reinforces this sequence implying restoration after discord, not before.
So, the bolded words in Romans 5:10 mean we have the provision for reconciliation through the death of the Son. Again, this is reinforced by the phrase “For it” which speaks about Christ's death and the blood indicated in verses 8-9 preceding. Now we asked when an enemy received the atonement.it is when acted by and through faith in Christ.