Tradition
St. John Chrysostom
Homilies on First Corinthians
Homily 29 › 1 Corinthians 12:9
“To another, faith in the same Spirit; to another gifts of healing in the one Spirit.”
Do you see how he every where makes this addition, saying, “through the same Spirit, and according to the same Spirit?” For he knew that the comfort from thence was great.
Source: Homilies on First Corinthians (New Advent)