Origen

“ Consider if, since the heart is in the middle of the whole body, and the ruling principle in the heart, the saying, “There standeth One among you whom you know not,” can be understood of [4] the reason which is in every man. John’s fourth testimony of Christ after these points to His human sufferings. ”

“ Perhaps it is not without significance that after six testimonies John ceases from his witness-bearing and Jesus brings forward in the seventh place His “What seek ye?” Very becoming in those who have been helped by John’s testimony is the speech in which they address Christ as their Master, and declare their wish to see the dwelling of the Son of God; for they say to Him, “Rabbi,” which answers to “Master,” in our language, “where dwellest Thou?” And since every one that seeketh findeth, when John’s disciples seek Jesus’ dwelling, Jesus shows it to them, saying, “Come and see.” ”