How does one become an heir according to the Bible?

To become an heir according to biblical teaching, one must be born again, as articulated in 1 Peter 1:23, where being born of incorruptible seed through the word of God leads to heirship. This process is rooted in the election of grace, as seen in 2 Thessalonians 2:13, which asserts that God has chosen His people from the beginning for salvation. This means that heirship is not based on works or merit but entirely on God's sovereign choice and grace manifesting in Jesus Christ's work on our behalf. Thus, through faith in Christ, we are welcomed into God’s family and made heirs of His promises.