Why is 'I AM' repeated three times in that verse...?
Because the question was asked twice, and God wanted Moses to understand so he could pass it on to Israel.
The question Moses asked God in Exo 3:13
1st question was suggested by Moses as to what Israel would be asking him because of Moses' leading Israel from Egypt; "And Moses said unto God, Behold, when I come unto the children of Israel, and shall say unto them, The God of your fathers hath sent me unto you; and
they shall say to me, What is his name?"
2nd question is Moses asking God for an answer to the first question; "
what shall I say unto them?"
1st response is from God to Moses in Exodus 3:14, explaining who He is to Moses -
"And God said unto Moses, egw eimi o` wn [I am the being] and he said,..."
2nd response is instruction for what Moses is to actually say to Israel; "Thus shalt thou say unto the children of Israel, [o` w'n] The Being hath sent me unto you.
This is for the Gentile nations to come to Christ; the Hebrew language was for the Jews to come to Christ. Are you a Jew? If not, try understanding from the scriptures God supplied just for you and other Gentiles.
God placed his
LOGION (Tr. Oracles in N.T.) oracles above his name, and said he would give Israel the oracles to hold for the Gentiles; and the Gentiles were told to "speak as the oracles of God."
GOD PLACES HIS ORACLES ABOVE HIS NAME
Psalm 138:2 I will worship toward thy holy temple, and praise thy name for thy lovingkindness and for thy truth: for thou hast magnified thy
logion (word) above all thy name.
GOD TELLS ISRAEL HOW HE JUDGES THEIR ADHERENCE TO COVENANT:
Isa 28:7-18
"But they also have erred through wine, and through strong drink are out of the way; the priest and the prophet have erred through strong drink, they are swallowed up of wine, they are out of the way through strong drink; they err in vision, they stumble in judgment. 8 For all tables are full of vomit and filthiness, so that there is no place clean.
GOD FORETELLS OF THE SEPTUAGINT SCRIPTURES YET TO BE DEVELOPED
Whom shall he teach knowledge? and whom shall he make to understand doctrine? them that are weaned from the milk, and drawn from the breasts. 10 For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little: 11 For
with stammering lips and another tongue will he speak to this people. 12 To whom he said, This is the rest wherewith ye may cause the weary to rest; and this is the refreshing: yet they would not hear.
GOD SPEAKS OF HO0W HIS WORD WILL BE GIVEN AND ITS RESULT IS A TRAP FOR ISRAEL
13 But the
LOGION (word) of the LORD was unto them precept upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little; that they might go, and fall backward, and be broken, and snared, and taken.
GOD WARNS ISRAEL OF WHAT IS IN STORE FOR THEM
14 Wherefore hear the logos (word) of the LORD, ye scornful men, that rule this people which is in Jerusalem. 15 Because ye have said, We have made a covenant with death, and with hell are we at agreement; when the overflowing scourge shall pass through, it shall not come unto us: for we have made lies our refuge, and under falsehood have we hid ourselves:16 Therefore thus saith the Lord GOD, Behold, I lay in Zion for a foundation a stone, a tried stone, a precious corner stone, a sure foundation: he that believeth shall not make haste.
GOD TELLS ISRAEL THEIR COVENANT WITH DEATH WILL NOT STAND, BUT WILL WALK ALL OVER THEM
17 Judgment also will I lay to the line, and righteousness to the plummet: and the hail shall sweep away the refuge of lies, and the waters shall overflow the hiding place. 18 And your covenant with death shall be disannulled, and your agreement with hell shall not stand; when the overflowing scourge shall pass through, then ye shall be trodden down by it.
PAUL SPEAKS OF THE JEWS ADVANTAGE
Rom 3:1 What advantage then hath the Jew? or what profit is there of circumcision? 2 Much every way: chiefly, because that unto them were committed the
logion (oracles) of God.
BABES IN CHRIST ARE TO LEARN FROM THE ORACLES OF GOD
Heb 5:11 Of whom we have many things to say, and hard to be uttered, seeing ye are dull of hearing. 12 For when for the time ye ought to be teachers, ye have need that one teach you again which be the first principles of the
LOGION (oracles) of God; and are become such as have need of milk, and not of strong meat. 13 For every one that useth milk is unskilful in the word of righteousness: for he is a babe. 14 But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.
MOSES WAS GIVEN ORACLES FOR ISRAEL, AND TO BE HELD IN STORE FOR LATER GENERATIONS
Acts 7:38 This is he, that was in the church in the wilderness with the angel which spake to him in the mount Sina, and with
our fathers: who received the lively oracles to give unto us:
CHRISTIANS ARE TO SPEAK AS THE ORACLES SPEAK
I Pet 4:11 If any man speak,
let him speak as the oracles of God; if any man minister, let him do it as of the ability which God giveth: that God in all things may be glorified through Jesus Christ, to whom be praise and dominion for ever and ever. Amen.
Trinity doctrine was developed by men who wanted to become important in the early church, so they used the Hebrew scriptures to develope what the Greek-speaking Gentiles could not know to question, and the Hebrew Christians lost sight of over the generations.
This is where the "I AM" quote comes from that is used to claim Jesus "quoted "I AM" to claim the divine name for himself. It is a phony argument. God did not say his name is "I AM" to the Gentiles, He siad his name is "'o wn" The Being, which Jesus did not quote in John 8:58.
And there are plenty of other arguments and scriptures that disprove trinity. Scriptures you cannot refute and arguments you cannot answer.