are lies true?

The question is, when? If one persists then it is faith. Church teaching lacks zing, the attributes of life and action. It is obvious the conclusions one can draw from that. Meanwhile secularists chime in that believing for health issues is a lie. They do not define faith the way believers are supposed to believe. They do not persist.         Since faith is defined as believing those things that are not as though they were, humanists can argue this is a lie. In John, I think chapter 7, Jesus told His disciples He was not going up to Jerusalem for the feast. But then He went in order to deceive the synagogue because they sought to kill Him. So apparently He did not trust the twelve?
         This is the kind of thing those hostile to believers like to bounce on to hold Jesus up to ridicule. As to believers they usually ignore or deny the entire scenario ever happened like that, then they do not have to think about it or respond. My point is churches send their Sunday Scholars to college ill equipped to explain or stand up their faith or for Jesus. Then they usually graduate losing whatever meager belief they did have.