John the Apostle
John 8:55ESV·traditional attribution

But you have not known him. I know him. If I were to say that I do not know him, I would be a liar like you, but I do know him and I keep his word.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we have, I. The doctrine of the immortality of believers laid down, Joh 8:51. It is ushered in with the usual solemn preface, Verily, verily, I say unto you, which commands both attention and assent, and this is what he says, If a man keep my sayings, he shall never see death. Here we have, 1.

Commenting on John 8:51-59

John Gill Reformed Baptist @doctorgill

Jesus said unto them, verily, verily, I say unto you,.... Whether it will be believed or not, it is certainly fact: before Abraham was, I am; which is to be understood, not of his being in the purpose and decree of God, foreordained to sufferings, and to glory; for so all the elect of God may be said to be before Abraham, being chosen in...

Jamieson-Fausset-Brown Reformed @jfbcommentary

FURTHER DISCOURSES OF JESUS--ATTEMPT TO STONE HIM. (John 8:12-59) I am the light of the world--As the former references to water (Joh 4:13-14; Joh 7:37-39) and to bread (Joh 6:35) were occasioned by outward occurrences, so this one to light.

Commenting on John 8:12-59