Many believe that Mary was one of Luke's sources for the writing of his Gospel (see Luke 1:1–4). Luke records the angel Gabriel visiting Mary and telling her that she would give birth to a son who would be the Savior. Mary was unsure how this could be since she was a virgin. When Gabriel told her that the child would be conceived by the Holy Spirit, Mary answered, "I am the Lord's servant. . . . May your word to me be fulfilled. Then the angel left her" (Luke 1:38). Mary responded with belief and a willingness to submit to God's plan. We, too, should have such faith in God and trustingly follow Him.