Sutra:
119. periya pirAttiyArAlE pERAkaiyAvathu ivan purushakAram AnAlallathu Isvaran kAryam seyyAnenkai.

Meaning:
When He is the giver of the goal, how can it be said that the goal is gained through Her? It is because unless She acts as the mediatrix, He will not become the giver of the goal.

Sri PBA Swami's Sarartha Deepikai:
When the means is Him, how can it be said that it is through Her that one gains the goal? That is because, unless she mediates and requests that He protect the soul without looking at its sins, He will not do so.