He perhaps speaks to those whom the Apostle describes in his own person, saying, If I speak with the tongues of men and of angels, and have all knowledge, and give all my goods to feed the poor, but have not charity, it profiteth me nothing. For whatever is done not from regard to the love of God, but to gain praise from men, obtains no praise from God.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: reg. brev. ad int. 282.