GENESiS 22.6

This verse simply says that Isaac carried the wood on the way to Mount Moriah. However, I just purchased a Jewish study Bible at Barnes & Noble. These are modern, liberal Jewish commentators who have no concern for the claims of Jesus. The study note in this Bible on Gen 22.6 reads as follows:

The image of Isaac's carrying the wood on which on which he is to be burned adds enormous power to the story. A midrash relates this to a Roman method of execution that was sometimes used on Jewish martyrs: "It is like a person who carries his cross on his own shoulder" [Gen Rab 56.3].

[more here on the binding of Isaac]