John Chrysostom

But the Lord honoured Levi, whom He had called, by immediately going to his feast. For this testified the greater confidence in him. Hence it follows, And Levi made him a great feast in his own house. Nor did He sit down to meat with him alone, but with many, as it follows, And there was a great company of Publicans and others that sat down with them. For the publicans came to Levi as to their colleague, and a man in the same line with themselves, and he too glorying in the presence of Christ, called them all together. …

Catena Aurea by Aquinas ↗

Ambrose of Milan

People are hungry when Christ is absent and they lack the abundance of good desserts. Truly, one for whom his own virtue suffices for pleasure, who receives Christ in his own home, prepares a great feast. It is a spiritual banquet of good works, at which the rich people go without and the poor one feasts. It says, "The sons of the Bridegroom cannot fast while the Bridegroom is with them."

Commentary on Luke ↗

Bede

And Levi made him a great feast in his house. He who receives Christ within his home is nourished with the greatest joys far surpassing pleasures. Thus the Lord gladly enters and reclines in the affection of the one who has believed, and this is the spiritual feast of good works, which the rich crowd lacks, and the poor one feasts on.

On the Gospel of Luke ↗

Bonaventure

Third, the perfect calling is shown on the part of the devoted service that follows in ministering, when it says: And Levi made him a great feast in his house. Matthew was acting according to the resolve of the Wise Man, who said in Wisdom 8: "I resolved to bring wisdom to live with me, knowing that she would share with me her goods." Already in him was fulfilled the desire of Christ, according to Revelation 3: "Behold, I stand at the door and knock; if anyone opens to me, I will enter to him and sup with him," etc. …

Commentary on Luke, Chapter 5 ↗