Yes, the concept of grace is pervasive throughout the Bible, and Paul did not invent the term. The word "grace" is mentioned numerous times across both the Old and New Testaments, highlighting God's mercy and kindness towards His creation.In particular, John 1:17 states, "For the law was given by Moses, but grace and truth came by Jesus Christ," indicating that grace is closely associated with Jesus' ministry and the arrival of the New Covenant. However, the theme of grace is evident even prior to Jesus' coming, as exemplified in Exodus 34:6, where God describes Himself as "the Lord, the Lord, a God merciful and gracious..."
.Paul frequently discusses grace in his epistles, such as in Ephesians 2:8-9, where he writes, "For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast." Here, Paul reinforces the centrality of grace in salvation, echoing themes established earlier in the Bible
.Therefore, while Paul certainly elaborated on the implications of grace in the New Testament, the concept itself is deeply rooted in the broader narrative of Scripture.