Who does the term 'our' refer to when Paul says Christ died for our sins?

When Paul writes that 'Christ died for our sins' in 1 Corinthians 15:3, the term 'our' is not intended to imply a blanket statement for all humanity but is understood to refer to the elect—those whom God has chosen for salvation. This distinction emphasizes the personal nature of Christ's atonement. Just as the high priest represented Israel during the Day of Atonement, Christ represents His people in His sacrificial death. His blood is applied specifically to those whom God loves and has chosen, illustrating that His death effectively redeems those who are in Him.