32 Where, pray, can you see fear in His Passion? Where weakness? Or pain? Or dishonour? Do the godless say He feared? But He proclaimed with His own lips His willingness to suffer. Do they maintain that He was weak? He revealed His power, when His pursuers were stricken with panic and dared not face Him. Do they contend that He felt the pain of the wounds in His flesh? But He showed, when He restored the wounded flesh of the ear, that, though He was flesh, He did not feel the pain of fleshly wounds. The hand which touched the wounded ear belonged to His body: yet that hand created an ear out of a wound: how then can that be the hand of a body which was subject to weakness?
Source: On the Trinity (New Advent)