Luke 1:26-38 CSB – 26 In the sixth month, the angel Gabriel was sent by God to a town in Galilee called Nazareth, 27 to a virgin engaged to a man named Joseph, of the house of David. The virgin’s name was Mary. 28 And the angel came to her and said, “Greetings, favored woman! The Lord is with you.” 29 But she was deeply troubled by this statement, wondering what kind of greeting this could be. 30 Then the angel told her: “Do not be afraid, Mary, for you have found favor with God. 31 “Now listen: You will conceive and give birth to a son, and you will name him Jesus. 32 “He will be great and will be called the Son of the Most High, and the Lord God will give him the throne of his father David. 33 “He will reign over the house of Jacob forever, and his kingdom will have no end.” 34 Mary asked the angel, “How can this be, since I have not had sexual relations with a man? ” 35 The angel replied to her: “The Holy Spirit will come upon you, and the power of the Most High will overshadow you. Therefore, the holy one to be born will be called the Son of God. 36 “And consider your relative Elizabeth – even she has conceived a son in her old age, and this is the sixth month for her who was called childless. 37 “For nothing will be impossible with God.” 38 “I am the Lord’s servant,” said Mary. “May it be done to me according to your word.” Then the angel left her.
impossible — adjective
im·pos·si·ble | \(ˌ)im-ˈpä-sə-bəl \
1a : incapable of being or of occurring
b : felt to be incapable of being done, attained, or fulfilled : insuperably difficult
https://www.merriam-webster.com/dictionary
I am not God.
Some things (in fact, many, many things) are not possible for me. I am limited by time and space. I am limited by physical ability and mental capacity. I do not know the future. I have no ruling authority.
God IS God. He is not limited by anything. He IS the ruling authority over all creation.
Job 42:1-2 CSB – 1 Then Job replied to the LORD: 2 I know that you can do anything and no plan of yours can be thwarted.
And, not only does God have “vision and ideas and goals” — He alone has the absolute power to accomplish what He plans.
Proverbs 19:21 CSB – 21 Many plans are in a person’s heart, but the LORD’s decree will prevail.
Trust in God’s plan. Mary did not get every detail of how her life was going to “pan out” when the angel appeared to her. She submitted to God’s plan. She put her life, her reputation, her relationships in the hands of her Creator.
“I am the Lord’s servant; may it be done to me according to your word,” (Luke 1:38) is my prayer today. Is it yours?
Plea for Grace 
Thank you Bev for your insightful, meanful writing for this Advent season. Many points to ponder and helps keep the focus on Christ. God bless you.