Why is union with Christ important for believers?

Union with Christ is a profound theological truth that underscores the identity and position of believers before God. As stated in the sermon, this union is what enables every believer to be a temple of God and a member of His household. Through this union, believers participate in the righteousness of Christ and are sanctified in Him. It indicates an inseparable bond where believers receive spiritual sustenance and assurance of their salvation, symbolizing that their entire salvation rests upon Christ's work and not their own. This union compels believers to pursue holiness and abhor sin, as it reflects the indwelling presence of God.