@EdJ Hi Ed,
The reason Scripture DOES NOT SAY ANOTHER SPIRIT is because the Spirit is one.
Note the way it that s presented in Jn 14.16
And I will ask the Father and He will send you ANOTHER HELPER, that He may be with you forever,
that is THE SPIRIT OF TRUTH…
Jn 15.26
And when THE HELPER comes, Whom I will send you from the Father, that is THE SPIRIT OF TRUTH,
,Who proceeds from the Father, He will bear witness of me.
Jn 15.26
But the HELPER, THE HOLY SPIRIT, Whom the Father will send in my name,He will teach you all things,
and bring to your remembrance all that I said to you..
Jn 15.23
..WE will come to him and make OUR abode with him

TWO HELPERS in the ONE HOLY SPIRIT.
The SPIRIT OF TRUTH FROM THE FATHER, and the SPIRIT OF THE FAITHFUL SERVANT SON.