ISB ~ Luke 1 v38

let it be to me:Mary freely and actively embraces God’s invitation to bear the Messiah. The Greek expression denotes more than mere passive acceptance, indicating that she wishes or desires to fulfill God’s will in her life. Unlike Zechariah, she welcomes the angel’s words uninhibited by doubt (CCC 148, 494, 2617). See note on Lk 1:18.