John Gill Commentary Mark 11:4

"And they went away, and found a colt tied at the door without in the open street; and they loose him." — Mark 11:4 (ASV)

And they went their way
The two disciples went to the village, where Christ sent them, without objecting any difficulties that might present, in the execution of these orders:

and found the colt tied by the door without ;
in the street, fastened to the door of the owner's house, at the town's end:

in a place where two ways met ;
to go into and out of the village; at the corner house, where two ways met; so that the place was very public, and such an affair could not be transacted, without being seen:

and they loose him ;
as soon as ever they came to the place, they immediately began to untie the colt, and were going away with him.