Don't you take the Bible seriously when Elizabeth, the angel, and even Mary uses the word "Blessed"?
Think about it. It's right there in the Bible.
Matthew 5:
[1] Seeing the crowds, he went up on the mountain, and when he sat down his disciples came to him.
[2] And he opened his mouth and taught them, saying:
[3] "Blessed are the poor in spirit, for theirs is the kingdom of heaven.
[4] "Blessed are those who mourn, for they shall be comforted.
[5] "Blessed are the meek, for they shall inherit the earth.
[6] "Blessed are those who hunger and thirst for righteousness, for they shall be satisfied.
[7] "Blessed are the merciful, for they shall obtain mercy.
[8] "Blessed are the pure in heart, for they shall see God.
[9] "Blessed are the peacemakers, for they shall be called sons of God.
[10] "Blessed are those who are persecuted for righteousness' sake, for theirs is the kingdom of heaven.
[11] "Blessed are you when men revile you and persecute you and utter all kinds of evil against you falsely on my account.
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And so are many others.
"Think about it. It's right there in the Bible."