it is your duty to study the Holy Scripture and to be ready to give an answer to all evil-doers who preach Gospels contrary to the one handed down to us.
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I hear this repeated a lot yet one is council to study scriptures and pray so as to have the ability to know when to give an answer or to be still!
Even the Lord did not always given an answer!
BTW the only verse I found said nothing about giving an answer to “evil doers” but ready to give an answer to every man of REASON seeking hope.
1 Peter 3:15
15 But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:
Since evil doers are about snares and entrapment it would be best to be still and wait upon the Lord for guidance
Be like god and don't answer this:
Will your lack of a TR keep you away from your Forever Family®?
and you people are taught to do the same:
Professor Robert Millet teaching at the Mission Prep Club in 2004 http://newsnet.byu.edu/video/18773/ <-- Complete and uneditted
Timeline... Subject...0:59 "Anti-Mormons..."1:16 "ATTACK the faith you have..."2:02 "We really aren't obligated to answer everyone's questions..."3:57 "You already know MORE about God and Christ and the plan of salvation than any who would ATTACK you."