John Gill Commentary Luke 19:29

"And it came to pass, when he drew nigh unto Bethphage and Bethany, at the mount that is called Olivet, he sent two of the disciples," — Luke 19:29 (ASV)

And it came to pass when he was come near
The other evangelists, Matthew and Mark, add "to Jerusalem"; but this Luke designs afterwards, (Luke 19:37) and therefore here means, as is expressed, that he was come near

to Bethphage and Bethany ;
two tracts of land which reached from Mount Olivet to Jerusalem; so that when he was there, he was near to the city:

at the mount, called [the Mount] of Olives ;
or "Elaion", as the Ethiopic version, which retains the Greek word for it; and which has its name from the great number of olive trees that grew upon it:

he sent two of his disciples ;
their names are not mentioned by any of the evangelists, but it is very probable they were Peter and John; of the places here mentioned; (See Gill on Matthew 21:1).