Theophylact of Ohrid — as excerpted in the Catena Aurea on Luke 23:26-32

“For no one else accepted to bear the cross, because the wood was counted an abomination. Accordingly upon Simon the Cyrenian they imposed as it were to his dishonour the bearing of the cross, which others refused. Here is fulfilled that prophecy of Isaiah, Whose government shall be upon his shoulder. (Isa. 9:6.) For the government of Christ is His cross; for which the Apostle says, God hath exalted him. (Phil. 2:9.) And as for a mark of dignity, some wear a belt, others a head dress, so our Lord the cross. And if thou seekest, thou wilt find that Christ does not reign in us save by hardships, whence it comes that the luxurious are the enemies of the cross of Christ.”