I have not researched this point thoroughly but I have been wondering if the language that Scripture employs regarding God pouring out his spirit of holiness is metaphorical or not. For example, Joel 2:28 states:
"It will come about after this That I will pour out My Spirit on all mankind; And your sons and daughters will prophesy, Your old men will dream dreams, Your young men will see visions" (NASB).
We also read in Isa 32:15:
"Until the spirit be poured upon us from on high, and the wilderness be a fruitful field, and the fruitful field be counted for a forest" (KJV).
The argument is sometimes made that a "person" of the triune Godhead cannot be poured out. But the thought has crossed my mind lately that a "force" also cannot be literally "poured out" in the manner described by the prophets, can it? If a force or person cannot be "poured out" it seems that the language employed by the holy prophets and apostles is metaphorical.