can't answer a question with a question
and also theres different forms of intercession like Job getting intercession from angels Job 33:23
Genesis 21:17-18 And God heard the voice of the lad; and the angel of God called to Hagar from heaven, and said to her, “What troubles you, Hagar? Fear not; for God has heard the voice of the lad where he is. [18] Arise, lift up the lad, and hold him fast with your hand; for I will make him a great nation.”
And we know that angels pray to God for us:
Zechariah 1:12-13 Then the angel of the LORD said, `O LORD of hosts, how long wilt thou have no mercy on Jerusalem and the cities of Judah, against which thou hast had indignation these seventy years?' [13] And the LORD answered gracious and comforting words to the angel who talked with me.
but basically im asking is there any indication in the Holy scripture that states only the living intercede for us and that the holy spirit only intercede for Christians on earth.