How does Simeon Halliday respond to George's assertion that he will fight to the death to defend his wife and child?

From the text:

"Mortal man cannot blame thee, George. Flesh and blood could not do otherwise," said Simeon. "Woe unto the world because of offences, but woe unto them through whom the offence cometh."
"Would not even you, sir, do the same, in my place?"
"I pray that I be not tried," said Simeon; "the flesh is weak."