“The dangerous estate and condition of a sinner requires haste; it is like that of Lot in Sodom, when it was just going to be destroyed; and like that of the manslayer, when pursued by the avenger of blood; both whom it became to escape for their lives, and flee for refuge as fast as they could: and so it became Zacchaeus to come down with all speed to Christ, who was come hither to call and save him; and the enjoyment of Christ, and his grace, calls for haste…”  (John Gill).

“He bade him make haste, and come down. Those that Christ calls must come down, must humble themselves, and not think to climb to heaven by any righteousness of their own; and they must make haste and come down, for delays are dangerous. Zaccheus must not hesitate, but hasten; he knows it is not a matter that needs consideration whether he should welcome such a guest to his house” (Henry).

“… it is not improper to learn from this example that solicitude to behold the Saviour will not pass unnoticed by him, but will meet with his warm approbation, and be connected with his blessing. Jesus was willing to encourage efforts to come to him, and his benevolence prompted him to gratify the desires of the man who was solicitous to see him.” 

"Christ knows where his people are, and where to find them, where they commonly dwell, or where at any time they are, he being omniscient (all-knowing) God…He knows where they are, when the time is come to call them.   

"He knew Zacchaeus was in the sycamore tree, just like He saw Nathanael under the fig tree before Philip called him (John 1:48).  This is because Jesus Christ comes to the very place where is people are, either in person, as here; and so He came to Galilee, and to the sea there, and walked by it, and on the very spot, where He knew He should meet with Peter, and Andrew, and James, and John, whom He called to follow Him (Matt. 4:13).  

"He came to his own city Capernaum, and to the place of receipt of custom near unto it, where Matthew was, and called him (Matt. 9:1) and he came to Samaria, and to Jacob's well, where He knew the woman of Samaria would be at such a time, in order to call her: or, though He comes not in person to others, where they are, yet by His word, and by His Spirit; and He comes to them before they come to Him; and is found of them, and finds them, who sought Him not; and is made manifest to them, who asked not for Him; and in this He acts the part of the good shepherd, that leaves the ninety-nine in the wilderness, and goes after that which is lost till He finds it; and agreeably to His character as a Saviour, and to the end of His coming into the world, which was to call sinners to repentance, and to seek, and save that which is lost (Luke 19:10)”  (John Gill).

“You know everything I do; from far away you understand all my thoughts.  You see me, whether I am working or resting; you know all my actions.  Even before I speak, you already know what I will say. You are all around me on every side; you protect me with your power. Your knowledge of me is too deep; it is beyond my understanding. Where could I go to escape from you? Where could I get away from your presence? If I went up to heaven,you would be there; if I lay down in the world of the dead, you would be  there. If I flew away beyond the east or lived in the farthest place in the west, you would be there to lead me, you would be there to help me. I could ask the darkness to hide me or the light around me to turn into night, but even darkness is not dark for you, and the night is as bright as the day.Darkness and light are the same to you. You created every part of me; you put me together in my mother's womb. I praise you because you are to be feared; all you do is strange and wonderful. I know it with all my heart.  When my bones were being formed, carefully put together in my mother's womb, when I was growing there in secret, you knew that I was there--- you saw me before I was born. The days allotted to me had all been recorded in your book, before any of them ever began”  (Psa. 139:1-16).

“This city was build under a curse,yet Christ honoured it with his presence, for the gospel takes away the curse.  Though it ought not to have been built, yet it was not therefore a sin to live in it when it was built.” 

“He does not disdain the mansions of the rich any more than he does the dwelling-places of the poor, provided there be a humble heart; and he did not suppose there was 'less' need of his presence in order to save in the house of the rich man than among the poor. He set an example to all his ministers,and was not afraid or ashamed to proclaim his gospel amid wealth. He was not awed by external splendor or grandeur”  (Barnes).

Jesus went on into Jericho and was passing through. There was a chief tax collector there named Zacchaeus, who was rich. He was trying to see who Jesus was, but he was a little man and could not see Jesus because of the crowd. So he ran ahead of the crowd and climbed a sycamore tree to see Jesus, who was going to pass that way. When Jesus came to that place, he looked up and said to Zacchaeus, "Hurry down, Zacchaeus, because I must stay in your house today." Zacchaeus hurried down and welcomed him with great joy. All the people who saw it started grumbling, "This man has gone as a guest to the home of a sinner!" Zacchaeus stood up and said to the Lord, "Listen, sir! I will give half my belongings to the poor, and if I have cheated anyone, I will pay back four times as much." Jesus said to him, "Salvation has come to this house today, for this man, also, is a descendant of Abraham. The Son of Man came to seek and to save the lost."