In the early Passages of Matthew, Mark and Luke when Jesus speaks of bearing a cross, He is not referring to HIS CROSS, just a heavy burden:
Matthew 10:38, Luke 14:27 And he that taketh not his cross, and followeth after me, is not worthy of me.
Matthew 16:24, Mark 8:34, Luke 9:23 Then said Jesus unto his disciples, If any man will come after me, let him deny himself, and take up his cross, and follow me.
Mark 10:21 Then Jesus beholding him loved him, and said unto him, One thing thou lackest: go thy way, sell whatsoever thou hast, and give to the poor, and thou shalt have treasure in heaven: and come, take up the cross, and follow me.
Then after His arrest the references in Matthew Mark Luke and John are the actual Cross of Christ:
Matthew 27:32 And as they came out, they found a man of Cyrene, Simon by name: him they compelled to bear his cross.
Matthew 27:40 And saying, Thou that destroyest the temple, and buildest it in three days, save thyself. If thou be the Son of God, come down from the cross.
Matthew 27:42 He saved others; himself he cannot save. If he be the King of Israel, let him now come down from the cross, and we will believe him.
Mark 15:21 And they compel one Simon a Cyrenian, who passed by, coming out of the country, the father of Alexander and Rufus, to bear his cross.
Mark 15:30 Save thyself, and come down from the cross.
Mark 15:32 Let Christ the King of Israel descend now from the cross, that we may see and believe. And they that were crucified with him reviled him.
Luke 23:26 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.
John 19:17 And he bearing his cross went forth into a place called the place of a skull, which is called in the Hebrew Golgotha:
John 19:19 And Pilate wrote a title, and put it on the cross. And the writing was JESUS OF NAZARETH THE KING OF THE JEWS.
John 19:25 Now there stood by the cross of Jesus his mother, and his mother’s sister, Mary the wife of Cleophas, and Mary Magdalene.
John 19:31 The Jews therefore, because it was the preparation, that the bodies should not remain upon the cross on the sabbath day, (for that sabbath day was an high day,) besought Pilate that their legs might be broken, and that they might be taken away.