Why is being established in grace important for Christians?

Establishing oneself in grace is crucial for Christians as it fortifies against the temptations of strange and deceptive doctrines that can lead astray. Hebrews 13:9 emphasizes a heart established with grace, indicating that it is vital for spiritual stability. Grounding in God’s unchanging grace helps believers discern truth from error, avoiding being tossed about by the winds of popular or attractive false teachings. Moreover, it ensures that one's understanding of salvation remains rooted in Christ’s finished work rather than in personal merit or rule-keeping.