Charles Ellicott Commentary John 1:50

"Jesus answered and said unto him, Because I said unto thee, I saw thee underneath the fig tree, believest thou? thou shalt see greater things than these." — John 1:50 (ASV)

You believe.—This is not necessarily a question, and a fuller sense is obtained by taking it as an assertion. (Compare the same word in John 16:31 and John 20:29.) On this evidence you believe; the use of the faith-faculty strengthens it. You shall see greater things than these.