When Jesus saw Nathanael approaching, he said of him, “Here truly is an Israelite in whom there is no deceit.”

“How do you know me?” Nathanael asked.

  Jesus answered, “I saw you while you were still
    under the fig tree before Philip called you.” 
                                                     ~John 1:47-48

When you read this short exchange between Jesus and Nathanael in the Gospel of John, you can almost blow right by it.