What 'Full of Grace' Really Means
The question
The angel just called Mary 'favored,' right — so why do Catholics read so much into it?
Scripture · Luke 1:28
And he came to her and said, "Hail, full of grace, the Lord is with you!"
A short answer
A lot of translations render Gabriel's greeting as "favored one," so it's fair to ask why Catholics lean on "full of grace." The answer is in the Greek. The word is kecharitomene — a perfect passive participle. That's not just "favored"; it means something like "you who have been and remain completely filled with grace." The grammar points to a state already accomplished in her, not a one-time nod of approval.
There's something else worth noticing. Gabriel doesn't use Mary's name. He greets her with this word as if it were her title — as if "full of grace" describes who she is. Angels in Scripture usually tell people not to be afraid and then say their name. Here the angel addresses her by what God has already done in her soul.
The Church reads this carefully, not extravagantly. The Catechism says "the grace of God prevented her from sin" and that she was "redeemed from the moment of her conception" (CCC 491-492). None of this makes Mary divine or a source of grace — every bit of it is gift, won by her Son's cross applied to her in advance. She's the first and greatest example of what grace does to a person who says a total yes. "Full of grace" isn't flattery. It's a clue, dropped by an angel, about how completely God can fill a willing heart.