Ambrose of Milan — as excerpted in the Catena Aurea on Mark 11:1-10

“(in Luc. 9, 6) Or else, they found it bound before the door, because whosoever is not in Christ is without, in the way; but he who is in Christ, is not without. He has added in the way, or in a place where two ways meet, where there is no certain possession for any man, nor stall, nor food, nor stable; miserable is his service, whose rights are unfixed; for he who has not the one Master, has many. Strangers bind him that they may possess him, Christ looses him in order to keep him, for He knows that gifts are stronger ties than bonds.”