Bede

The boy grew and was weaned, and Abraham held a great feast on the day of his weaning. Isaac is nourished with milk when each chosen one, that is, the son of the promise, newly begotten in Christ, receives the first rudiments of faith, and although he cannot yet sufficiently search the most profound secrets of divinity, nevertheless, delighted by the sweetness of celestial rewards, he strives to engage in good works through which, with God's help and generosity, he may deserve to receive greater things, according to what the apostle …

Commentary on Genesis (Hexaemeron) ↗