Hi Again, and God Bless you. That's the same thing the Pharisees were asking when denying Christ as God. A cross is made from wood, a tree. He was hanging from nails on the cross, the people watched Him hang there and release His soul to the Father. It is very simple, and I know that you folk here are intelligent people. The real question is, do you believe that he was resurrected on the third day, by the power of God, as prophesied in the Bible (studied, but denied by the Pharisees)?
In the book of Titus, in the NT, written by Paul for the purpose of appointing leadership in the church he explains some foundational leadership, or false leadership qualities:

TITUS, 1:10-16
For there are many insubordinate men, empty talkers and deceivers, especially the circumcision party ( Rose's addition: the Jewish Pharisees who do not believe that Jesus is indeed the Chrits!) ;they must be silenced, since they are upsetting whole families by teaching for base gain ( R: selfishness ) what they have no right to teach. One of themselves, a prophet of their own, said, "Cretans are always liars, evil beasts, lazy gluttons." This testimony is true. Therefore rebuke them sharply, that they may be sound in the faith, instead of giving heed to Jewish myths or commands of men who reject the truth. To the pure, all things are pure, but to the corrupt and unbelieving nothing is pure; their very mind and conciences are corrupted. They profess to know God, but they deny him by their deeds; they are detestable, disobedient, unfit for any good deed.