John 1:47 - 50
NIV - 47 When Jesus saw Nathanael approaching, he said of him, "Here truly is an Israelite in whom there is no deceit. 48 "How do you know me?" Nathanael asked. Jesus answered, "I saw you while you were still under the fig tree before Philip called you."
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.