Augustine of Hippo
Catena Aurea · Lukasevangelium 23
And as they led him away, they laid hold upon one Simon, a Cyrenian, coming out of the country, and on him they laid the cross, that he might bear it after Jesus. And there followed him a great company of people, and of women, which also bewailed and lamented him. But Jesus turning unto them said, Daughters of Jerusalem, weep not for me, but weep for yourselves, and for your children. For, behold, the days are coming, in the which they shall say, Blessed are the barren, and the wombs that never bare, and the paps which never gave suck. Then shall they begin to say to the mountains, Fall on us; and to the hills, Cover us. For if they do these things in a green tree, what shall be done in the dry? And there were also two other, malefactors, led with him to be put to death.
(de Con. Ev. lib. iii. c. 10.) But John relates that Jesus bore His own cross, from which is understood that He was Himself carrying His cross, when He went forth to that place which is called Calvary; but as they journeyed Simon was forced into the service on the road, and the cross was given him to carry as far as that place.