Luke 19:9

Jesus said unto him - Bishop Pearce observes: "Probably Luke wrote αυτους, not αυτον, said unto them, i.e. to those who had before called Zaccheus a sinner; (Luke 19:7); for Jesus here speaks of Zaccheus in the third person, he also is a son of Abraham, and therefore he was not then speaking to him." This conjecture of this respectable prelate is supported by the margin of the later Syriac, and by every copy of the Itala but two.

To this house - Τῳ οικῳ τουτῳ, To this very house or family. As if he had said: "If he be a sinner, he stands in the greater need of salvation, and the Son of man is come to seek and save what was lost, Luke 19:10; and therefore to save this lost soul is a part of my errand into the world." See the sentiment contained in this verse explained on Matthew 18:11 (note).

Salvation is come to this house - This family. They have this day received the blessings of the gospel, and become interested in the Messiah's kingdom. Salvation "commences" when people truly receive Christ and their sins are pardoned; it is "completed" when the soul is sanctified and received up into heaven.

Forasmuch - Because. For he has given "evidence" that he is a new man, and is disposed to forsake his sins and receive the gospel.

The son of Abraham - Hitherto, although a Jew, yet he has been a sinner, and a great sinner. He was not worthy to be called a son of Abraham. Now, by repentance, and by receiving the Christ whose day Abraham saw and was glad John 8:56, he has shown himself to be worthy to be called his son. Abraham was an example of distinguished piety; the father of the faithful Romans 4:11, as well as the ancestor of the Jews. They were called his sons who were descended from him, and particularly they who "resembled" him. In this place the phrase is used in both senses.

19:9 He also is a son of Abraham - A Jew born, and as such has a right to the first offer of salvation.