Matthew 27:31

And led him away to crucify him. It was the custom for men condemned to die by crucifixion to carry their cross, which Jesus did through the city; but going out, or being gone out of the city, and, as it is probable, fainting under the weight of it, (his strength as man being exhausted) they forced a man of Cyrene, named Simon, perhaps a Gentile, or Cyrene, in Lybia, to carry the cross after him. St. Luke says, they laid the cross upon him to carry after Jesus; whether it were that they made Simon carry the whose cross, or whether he only bore it up behind, is not expressed. St. Luke tells us, a great crowd followed, and a number of women, who wept and lamented; to whom Christ said: weep not over me, but weep for yourselves, and for your children, on account of the punishments and miseries that will shortly happen. (Witham)