How does God's grace manifest in salvation?

Grace is the cornerstone of the Christian doctrine of salvation. Ephesians 2:8-9 states that we are saved by grace through faith, 'and that not of yourselves: it is the gift of God.' This illustrates that salvation is not earned by human effort but is a divine gift bestowed upon those whom God has chosen. Throughout Scripture, we see the manifestations of grace not just in the act of calling the elect but also in the ongoing process of sanctification and assurance of eternal life, emphasizing that all aspects of salvation are grounded in God's favorable disposition towards His people, rooted in His covenantal promises.