Jesus' ignominious death on a cross did not at first nor even now serve to support a version of belief held by just about everybody at the time .  In fact , from the words of the Couple on their way to Emmaus ... " We had thought ... " .  Only in meeting the mysterious stranger and in the breaking of the bread with him did they come to believe . 
Jesus is that sign of contradiction  .  And paradox .  
Question is , for whom am I looking  ?   Not for what am I looking ?
Peter was not a tower of strength was he,  for quite a long time ?  Repeatedly needing to grow in faith and learn .