This symbology shows the HolySpirit satisfying His own requirement for sin - the shedding of blood.
And so He presents to Himself the lives of all those who come to Him by faith in Christ Jesus.
A lamb has a cloven hoof. It does not have a hand, fingers or prehensile thumb necessary to `take` something.
So, we understand that there is not two persons in the throne, but one.
The One is the eternal Word and Spirit, who made Himself a lamb, who is the PrinceOfPeace, the EverlastingFather, the MightyGod, KingOfKings, LordOfLords
The LordJesusChrist is the eternal SpiritOfGod and the eternal SoulOfGod manifested in the BodyOfGod.