How does the concept of God’s eternal love reassure believers?

The concept of God's eternal love is foundational to the assurance of a believer's salvation. As stated in Ephesians 1:4-5, believers are chosen in Christ before the foundation of the world, which highlights the immutability of God's love. This love is not contingent on the believer’s performance or behavior; rather, it is rooted in God's sovereign grace. This assurance allows believers to rest from the anxiety of their standing before God, knowing that His affection for them stems from His mercy, not their merit. Thus, this profound understanding of God's eternal love fosters peace and security in the believer's life, regardless of their circumstances or shortcomings.