So in the course of time Hannah conceived and gave birth to a son. She named him Samuel, saying, "Because I asked the LORD for him." Hannah Dedicates Samuel
When the man Elkanah went up with all his family to offer the annual sacrifice to the LORD and to fulfill his vow,
Hannah did not go. She said to her husband, "After the boy is weaned, I will take him and present him before the LORD, and he will live there always."
"Do what seems best to you," Elkanah her husband told her. "Stay here until you have weaned him; only may the LORD make good his word." So the woman stayed at home and nursed her son until she had weaned him.
After he was weaned, she took the boy with her, young as he was, along with a three-year-old bull, an ephah of flour and a skin of wine, and brought him to the house of the LORD at Shiloh.
When they had slaughtered the bull, they brought the boy to Eli,
and she said to him, "As surely as you live, my lord, I am the woman who stood here beside you praying to the LORD.
I prayed for this child, and the LORD has granted me what I asked of him.
So now I give him to the LORD. For his whole life he will be given over to the LORD." And he worshiped the LORD there.
1 Samuel Chapter 1: Verses 20 - 28
The angel of the LORD appeared to her and said, "You are sterile and childless, but you are going to conceive and have a son.
Now see to it that you drink no wine or other fermented drink and that you do not eat anything unclean,
because you will conceive and give birth to a son. No razor may be used on his head, because the boy is to be a Nazirite, set apart to God from birth, and he will begin the deliverance of Israel from the hands of the Philistines."
Then the woman went to her husband and told him, "A man of God came to me. He looked like an angel of God, very awesome. I didn't ask him where he came from, and he didn't tell me his name.
But he said to me, 'You will conceive and give birth to a son. Now then, drink no wine or other fermented drink and do not eat anything unclean, because the boy will be a Nazirite of God from birth until the day of his death.' "
Judges Chapter 13: Verses 3 - 7