Question 1: Who is the 3rd person of the Trinity?
The Holy Spirit.
Question 2: Why does the Holy Spirit need to help us pray?
He needs more to do.
Because we forget so much.
Acording to Romans 8:26 we don't know how to pray as we should.
Question 3: How important is the Holy Spirit in our Salvation?
I guess, pretty important.
Not at all , Jesus did everything.
We would not know that we needed a Savior without him.
Question 4 What part does the Holy Spirit have in our Salvation?
No part, Jesus did everything.
The Holy Spirit convicts of sin and makes the repentant sinner a new person.
Can I ask Mister Pig?