Gregory the Great
Patristic
c. A.D. 540–604
“10. To offer a sacrifice of the Holy Church is to kindle the hearts of one's hearers in love of the Creator through the words of preaching. At that time, therefore, a small garment is said to have been brought to Samuel, because while he was still advancing through the growth of his newness, he received from the Church tokens of righteousness suited to his smallness, with whose splendor he might shine. There follows: (Verse 20.) And Eli blessed Elkanah and his wife, saying: May the Lord grant you offspring from this woman, in return for the loan which you have entrusted to the Lord.”