How does the high priest represent God's people?

In the context of Exodus 28, the high priest represents the people of Israel by bearing their names on the breastplate, symbolizing his intercession for them. This is seen vividly during the Day of Atonement when he enters the Holy of Holies to atone for their sins. The high priest serves as a federal head, embodying the community he represents before a holy God. This foreshadows Christ's role as our ultimate High Priest, who carries our names before the Father and intercedes on our behalf, ensuring that His elect are included in God's redemptive plan.