Isaiah 47:4 - Only God is redeemer

 Isaiah 47:4 (KJV)  As for our redeemer, the LORD of hosts is his name, the Holy One of Israel.

Yes indeed Yahweh God almighty is our ultimate redeemer and he sent forth his son as his redemption agent as the below verses testifies. Similar to God being the only saviour, there is no redemption apart from God, but he can, and does use men as instruments to save and redeem.

Galatians 4:4-5 (KJV)  But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law,
To redeem them that were under the law, that we might receive the adoption of sons.

Romans 3:24-25 (KJV)  Being justified freely by his grace through the redemption that is in Christ Jesus:
Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;