1 Samuel 1:11

1:11 She made a vow saying, “O Lord of hosts, if you will look with compassion on the suffering of your female servant, remembering me and not forgetting your servant, and give a male child to your servant, then I will dedicate him to the Lord all the days of his life. His hair will never be cut.”

1 Samuel 2:30

2:30 Therefore the Lord, the God of Israel, says, ‘I really did say that your house and your ancestor’s house would serve me forever.’ But now the Lord says, ‘May it never be! For I will honor those who honor me, but those who despise me will be cursed!