Would Isaiah Have Signed Up If He Knew What the Mission Entailed?

"Here am I...send me!" is easy to say at the beginning of ministry, but when things are difficult, the Lord's servant may have his doubts or regrets. I can't help but wonder what went through Isaiah's mind as he heard the mission assigned to him. How would you respond if you were told up front, by God Himself, that your calling was to NOT bear fruit? We consider that in today's study.