Matthew Poole and continuators on 1 Samuel 1:22

22 But Hannah went not up , for she said unto her husband, I will not go up until the child be weaned , and then I will bring him, that he may appear before the LORD, and there abide for ever .

To wit, that Sacred Anniversary-Feast, to which she went up before, but now did not, because she could not with satisfaction to her Mind and Conscience appear before the Lord Empty, or without paying her Vow; nor bring her Child thither to God, and then carry him away from God to her own House. Nor did she Sin by not going up; for the Women were not obliged to go up at the Solemn Feasts, but the Men only, Exod. 23. 17.

Not only from the Breast and the Milk, which was done within Two or Three Years at most, but also from the Mothers Knee and Care, and from Childish Food; till the Child be something grown up, and fit to do some Service in the Tabernacle: for it seems, that as soon as he was brought up, he Worshipped God, v. 28. and presently after Ministred to Eli, 1 Sam. 2. 11. And this may further appear from the very Nature of the Vow, which must needs design a Service and an Advantage to the Tabernacle, and not a Burden and Encumbrance, as it would have been if a Young Child had been brought up to it, and left upon it.

That when once he is presented to the Lord, he may continue in his Service as long as he liveth, as is said v. 28.