Dominica tertia post Pentecosten: "this Man receiveth sinners and eateth with them"

From the Holy Gospel according to Luke
Luke 15:1-5

"Now the publicans and sinners drew near unto him to hear him.

2 And the Pharisees and the scribes murmured, saying: This man receiveth sinners, and eateth with them.

3 And he spoke to them this parable, saying:

4 What man of you that hath an hundred sheep: and if he shall lose one of them, doth he not leave the ninety-nine in the desert, and go after that which was lost, until he find it?

5 And when he hath found it, lay it upon his shoulders, rejoicing:"

Homily by Pope St. Gregory the Great.
34th on the Gospels.
Ye have heard, my brethren, from the Gospel which hath but now been read, how that the publicans and sinners drew near unto our Redeemer, and how that He received them, not only to converse, but also to eat with Him. And when the Pharisees and Scribes saw it, they murmured. From this learn ye, that true righteousness is merciful, and false righteousness is contemptuous, albeit that the righteous also oft-times feel moved with just indignation at sinners. But it is one thing to feel thus indignant through pride, and another to feel so through love of law.