The way this question is worded makes the Son a passive victim of the Father’s will, but nothing could be further from the truth!
I list below a set of truths about how the Father and Son work together to achieve the salvation of lost sons and daughters.
The question makes it sound as if the Son is a young child - but in fact the Son is a young man who has freely chosen to do His Father’s will with full knowledge of what He was doing and has been commissioned (baptism by the Spirit), given the authority to execute judgment and given the authority to give life.
Jesus was not like young Isaac walking with his father to the mountain - Jesus was a grown Son who joyfully worked together with a Father who gave Him honor, glory, authority and power to achieve the salvation of lost men and women. A full grown man (Jesus was commissioned at 30) who also happened to be preexistent with the Father - Jesus was and is not a victim - He is the conquering Son of God who freely laid down His life - knowing that He had the power to break sin and death given Him by His Father.
1 - The Father has given the Son Authority
John 5:25-27 - Truly, truly, I say to you, an hour is coming, and is now here, when the dead will hear the voice of the Son of God, and those who hear will live. 26 For as the Father has life in himself, so he has granted the Son also to have life in himself. 27 And he has given him authority to execute judgment, because he is the Son of Man.
2 - The Father Commissioned the Son
Luke 3:22 - The Holy Spirit descended on him in bodily form like a dove. And a voice came from heaven: “You are my Son, whom I love; with you I am well pleased.”
3 - The Father Honors the Son
John 5:20-23 - For the Father loves the Son and shows him all that he himself is doing. And greater works than these will he show him, so that you may marvel. 21 For as the Father raises the dead and gives them life, so also the Son gives life to whom he will. 22 For the Father judges no one, but has given all judgment to the Son, 23 that all may honor the Son, just as they honor the Father.
4 - The Son Freely Obeyed the Father
John 10:18 - No one can take my life from me. I sacrifice it voluntarily. For I have the authority to lay it down when I want to and also to take it up again. For this is what my Father has commanded.
5 - The Father’s Will Led the Son back to the Father’s Side
Hebrews 12:2 - For the joy set before him he endured the cross, scorning its shame, and sat down at the right hand of the throne of God.
Mark 16:19 - After the Lord Jesus had spoken to them, he was taken up into heaven and he sat at the right hand of God.
6 - The Will of the Father Saved Many and Led the Son to Perfection
Hebrews 2:10 - In bringing many sons and daughters to glory, it was fitting that God, for whom and through whom everything exists, should make the pioneer of their salvation perfect through what he suffered.