Does God allow us to devote others to his service?

Yes … yes he does.

Or he did. Here is what God says: “Nothing that a man devotes to the Lord—not even a man—may be redeemed. Everything so devoted is most holy to the Lord.” Leviticus 27:28

This is how one mother offered her child to the Lord’s service:
After he was weaned, Hannah took the boy with her, young as he was … and brought the boy to Eli and she said to him, “Pardon me, my lord. As surely as you live, 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.” 1 Samuel 1:21-28

“If anyone makes a special vow to the Lord involving the valuation of persons, then the valuation” is as such:

A male age 20-60, 20 ounces of silver
A female age 20-60, 12 ounces of silver
A male age 5-20, 8 ounces of silver
A female age 5-20, 4 ounces of silver
A male age i month to 5 years, 2 ounces of silver
A female age i month to 5 years, 1.25 ounces of silver
A male age 60 years or older, 6 ounces of silver
A female age 60 years or older, 4 ounces of silver”

These verses provide the redemption value: the value to be paid to redeem someone from God’s service. Christ has already paid this price for us, but what if each of us were to devote those we love to God and pay our Lord their silver valuation as a tithe to affirm our prayer that God would use that individual for his service? Something to ponder.