But "I am" in John 8:58, given the context, is best explained by Jesus claiming to be the "I Am," not just merely existing before Abraham. If Jesus existed before all creation of time and space, then he necessarily is the I Am. If there was a time when the Son did not exist, then his coming into being would have been the start of the creation of time and space, and he would be a creature, making passages such as John 1:1-2, 1 Cor 8:6, and Col 1:16-17 false. However, if Jesus is the I Am, then there is no contradiction with those passages.
I Am before who He claimed to see
Abraham Not I Am before the world began. This passage of scripture speaks for itself and is not defined by other passages of scripture.
Jesus answered them, “Truly, truly, I say to you, every one who commits sin is a slave to sin. 35 The slave does not continue in the house for ever; the son continues for ever. 36 So if the Son makes you free, you will be free indeed. 37 I know that you are descendants of Abraham; yet you seek to kill me, because my word finds no place in you. 38 I speak of what I have seen with my Father, and you do what you have heard from your father.”
Jesus and Abraham
39 They answered him, “Abraham is our father.” Jesus said to them, “If you were Abraham’s children, you would do what Abraham did, 40 but now you seek to kill me, a man who has told you the truth which I heard from God; this is not what Abraham did. 41 You do what your father did.” They said to him, “We were not born of fornication; we have one Father, even God.” 42 Jesus said to them, “If God were your Father, you would love me, for I proceeded and came forth from God; I came not of my own accord, but he sent me. 43 Why do you not understand what I say? It is because you cannot bear to hear my word. 44 You are of your father the devil, and your will is to do your father’s desires. He was a murderer from the beginning, and has nothing to do with the truth, because there is no truth in him. When he lies, he speaks according to his own nature, for he is a liar and the father of lies. 45 But, because I tell the truth, you do not believe me. 46 Which of you convicts me of sin? If I tell the truth, why do you not believe me? 47 He who is of God hears the words of God; the reason why you do not hear them is that you are not of God.”
48 The Jews answered him, “Are we not right in saying that you are a Samaritan and have a demon?” 49 Jesus answered, “I have not a demon; but I honor my Father, and you dishonor me. 50 Yet I do not seek my own glory; there is One who seeks it and he will be the judge. 51 Truly, truly, I say to you, if any one keeps my word, he will never see death.” 52 The Jews said to him, “Now we know that you have a demon. Abraham died, as did the prophets; and you say, ‘If any one keeps my word, he will never taste death.’ 53 Are you greater than our father Abraham, who died? And the prophets died! Who do you claim to be?” 54 Jesus answered, “If I glorify myself, my glory is nothing; it is my Father who glorifies me, of whom you say that he is your God. 55 But you have not known him; I know him. If I said, I do not know him, I should be a liar like you; but I do know him and I keep his word. 56 Your father Abraham rejoiced that he was to see my day; he saw it and was glad.” 57 The Jews then said to him, “You are not yet fifty years old, and have you seen Abraham?”[
d] 58 Jesus said to them, “Truly, truly, I say to you, before Abraham was, I am.” 59 So they took up stones to throw at him; but Jesus hid himself, and went out of the temple.