remember: 1 Samuel 1:19; Genesis 8:1, Genesis 30:22; Psalms 132:1-2
a man child: Heb. seed of men
I will give: Samuel, as a descendent of Levi, was the Lord's property, from twenty-five years of age till fifty; but the vow here implies that he should be consecrated to the Lord from his infancy to his death, and that he should not only act as a Levite, but as a Nazarite.
there: Numbers 6:5; Judges 13:5