Now the Holy Spirit is called the finger of God, because of the distribution of gifts which are given through Him, to every one his own gift, whether he be of men or angels. For in none of our members is division more apparent than in our fingers.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: de Quæst. Ev. l. ii. qu. 17.
