The Faith that is a Spirit Fruit is different from The Measure Of Faith that we receive at birth.
The Measure Of Faith can be considered human faith.
Whereas Holy Spirit Faith is supernatural. It is the Faith whereby the Word spoke and things came into existence.
The Measure Of Faith can only reach so far as to touch the Faith Of Christ Jesus (which is Holy Spirit Faith) and connect to it.
This is why we are dependent on Christ Jesus
→ He connects us to His Holy Spirit
→ who has supernatural Faith - the Faith that Jesus manifested.