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 23:22

23:22 Go and make further arrangements. Determine precisely where he is and who has seen him there, for I am told that he is extremely cunning.