Nathanael said to Him, "How do You know me?" Jesus answered and said to him, "Before Philip called you, when you were under the fig tree, I saw you."
John 1:48
Surrounding context
1:47 Jesus saw Nathanael coming toward Him, and said of him, "Behold, an Israelite indeed, in whom is no deceit!"
1:48 Nathanael said to Him, "How do You know me?" Jesus answered and said to him, "Before Philip called you, when you were under the fig tree, I saw you."
1:49 Nathanael answered and said to Him, "Rabbi, You are the Son of God! You are the King of Israel!"