Gregory the Great
Catena Aurea · Matthäusevangelium 4
And Jesus, walking by the sea of Galilee, saw two brethren, Simon called Peter, and Andrew his brother, casting a net into the sea: for they were fishers. And He saith unto them, Follow Me, and I will make you fishers of men. And they straightway left their nets, and followed Him. And going on from thence, he saw other two brethren, James the son of Zebedee, and John his brother, in a ship with Zebedee their father, mending their nets; and He called them. And they immediately left the ship and their father, and followed Him.
(Hom. in Evan. v. 1.) Peter and Andrew had seen Christ work no miracle, had heard from him no word of the promise of the eternal reward, yet at this single bidding of the Lord they forgot all that they had seemed to possess, and straightway left their nets, and followed Him. In which deed we ought rather to consider their wills than the amount of their property. He leaves much who keeps nothing for himself, he parts with much, who with his possessions renounces his lusts. Those who followed Christ gave up enough to be coveted by those who did not follow. Our outward goods, however small, are enough for the Lord; He does not weigh the sacrifice by how much is offered, but out of how much it is offered. Thekingdom of God is not to be valued at a certain price, but whatever a man has, much or little, is equally available.