Mat 17:17 O faithless and perverse generation, how long shall I be with you? how long shall I suffer you? bring him hither to me.

Christ isn't saying that he "suffers" this generation but that he must sustain it and hold it up. Christ consistently connects faith with truth and truth with power over our lives.

Alternative version: Oh doubting and distorting people, how long shall I be with you? how long shall I sustrain you you? bring him here to me.

"Faithless" is apistos, which means "not to be trusted" or "suspicious."

"Perverse" is diastrephô, which means "turn different ways," "twist about," and "distorted."

"Suffer" is anechomai, which means "to hold up," "to lift up," and "sustain."