John 8:21-25 Then said Jesus again unto them, I go my way, and you shall seek me, and shall die in your sins: where I go, you cannot come. Then said the Jews, Will he kill himself? because he said, Whither I go, you cannot come. And he said unto them, You are from beneath; I am from above: you are of this world; I am not of this world. I said therefore unto you, that you shall die in your sins: for if you believe not that I am he, you shall die in your sins. Then said they unto him, Who art thou? And Jesus said unto them, Even the same that I said unto you from the beginning.
‘I go my way, and you shall seek me, and shall die in your sins: where I go, you cannot come.’ This is the twenty-first New Testament fulfilled prophecy in John. They died in their sin of unbelief.
‘Will he kill himself?’ Note the contrast between this question and the one in John 7:35, both asked in connection with similar statements. They finally realized He was speaking of death, not of going to preach elsewhere, but now they raised the question as to who would kill Him.
‘You are of this world; I am not of this world’ they were capable of murder and suicide because they were of this world, earthly, sensual, and devilish; but He was of another world – from heaven – and was incapable of such. They confirmed His word by murdering Him and by many of them committing suicide to escape famine in 70 A.D.
‘I am He’ there is no “he” in the Greek in John 8:24, 28, reminding us of the name of God in Exo. 3:14-15. It means the Eternal, the ever-present One.
In verse 25 they ask Jesus: “Who art thou?” Where to Jesus answered them: “Even the same that I said unto you from the beginning” which was that He was the light of the world, as He said to them at the beginning of this discourse (John 8:12). Since there is no ‘from’ in the Greek, it could be literally translated, “that which I also say to you (now), the beginning,” that is, the beginning of all things, the head of all principality and power (Eph. 1:20-23; 4:15; 5:23; Col. 1:18; 2:10, 19; Heb.1:2-3).