However that may be, even without any extra details, knowing nothing else about him besides his being a tax collector, we would still know for certain that he was a sinner. Without knowing anything else, we would know that he collaborated with the Romans - and so was automatically a sinner, because God had given the land of Israel as a permanent covenant with his people forever and so to collaborate with the Romans seemed self-evidently sinful. Everyone understood that.
Sinner or not, Zacchaeus was seeking to see who Jesus was. Just what Jesus meant to him at that stage we have no way of guessing. People have probably always wanted to see celebrities. And Jesus, with his reputation already well established as a successful healer and exorcist, was certainly a celebrity – probably the biggest attraction to hit Jericho in a long time!
Zacchaeus, seeking to see who Jesus was, may have had no more than just a natural curiosity – just as any of us at any particular time may have nay number of natural human motives for coming to church. But, whatever our motives, at least we are here. And so it was with Zachaeus. Whatever his motives for seeking to see who Jesus was, at least they got him there.
Traditionally, this gospel was read at the Mass for the dedication of a church – a usage suggested, I suspect, by Jesus’ words: "Today salvation has come to this house." For that indeed is the purpose of a church – why churches are such special places, why we build them, why we dedicate them, and above all why we attend them.
Indeed salvation did come to Zacchaeus’ house that day, when in response to Jesus’ initiative, Zacchaeus received him with joy, boldly turning his own life around (apparently to everyone’s surprise) and demonstrating in the process both the genuineness of his own conversion and also how serious a matter it really is for someone to become a follower of Jesus: "behold, half of my possessions, Lord, I shall give to the poor, and if I have extorted anything from anyone I shall repay it four times over."
Today – and everyday – salvation comes to this house also, this church, to which we come in order to see Jesus, and within which (however imperfect or mixed our motives may sometimes be) Jesus boldly invites himself to stay with us. Here, we too can experience the real change Zacchaeus experienced – doing what we would never otherwise have done, becoming what we would never otherwise have become, a community of forgiven sinners changed by our faith in the One who invites himself to stay with us here in this house today.