Far younger than modern expectations. While Jewish betrothal customs placed her in early adolescence, her demanding trek through Samaria to visit Elizabeth proves immense physical stamina. Her immediate obedience in Luke 1:35–38 and scriptural fluency within the Magnificat demonstrate profound spiritual depth. God calling her highly favored confirms that modern believers must prioritize unwavering faith over chronological readiness.

Source Article: https://www.gotquestions.org/how-old-was-Mary.html