Religiously sounding synonym of agility
Solution 1:
The best word I can think of without breaking a sweat (which I am loath to do) is spirited.
The girl's spirited nature revealed her enthusiasm* for godly pursuits.
*[Late Latin enthūsiasmus, from Greek enthousiasmos, from enthousiazein, to be inspired by a god, from entheos, possessed : en-, in; see en-2 + theos, god; see dhēs- in Indo-European roots.]**
**I will not charge extra for this insight. Consider it a lagniappe!