Why is the concept of the elect important in Revelation 12?

In Revelation 12, the woman depicted in symbols represents the church, made up of the elect chosen by God before the foundation of the world. This concept is crucial because it emphasizes God's sovereignty in salvation. The elect are those who have been redeemed and preserved by Christ's work, highlighting that salvation is not based on individual merit but on God's grace. This assurance of salvation amid trials serves as comfort for believers, reminding them that they face tribulation but are ultimately secure in Christ's victory.