For the first time in the Bible, God tells us that he was eternal in talking to Moses when he appeared to him in a bush that burned and did not burn.
So Moses, before God brought the people of Israel out of slavery from Egypt through him, was a shepherd with his father-in-law Jethro. So one day, guarding the flock, he came to Mount Horeb and the Lord appeared to him.
"Now Moses kept the flock of Jethro his father in law, the priest of Midian: and he led the flock to the backside of the desert, and came to the mountain of God, [even] to Horeb. And the angel of the LORD appeared unto him in a flame of fire out of the midst of a bush: and he looked, and, behold, the bush burned with fire, and the bush [was] not consumed. "
Exodus 3: 1-2
Moses learned from God's conversation about God's intentions, and then Moses asked God what to say to the brothers of Israel when he went to them, what was the name of the God who sent him.
"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? what shall I say unto them?"
And then the Lord God answered Moses and said to him:
"And God said unto Moses, I Am That I Am: and he said, Thus shalt thou say unto the children of Israel, I Am hath sent me unto you.”
And the modern Serbian translation reads
" I Am That I Am "
And here we see that God uses an expression that tells us that God is eternal because "I am the One who is" or "I am the One who is. The eternal present time." "until now, I am the One who is now" and "I am the one who will be" in the future because the word "Yes" can be the past. The present and the future, therefore, in "eternal time", which we could say differently God is eternal.
Let us now see a few more examples where the Lord says He is eternal.
In John we have a conversation between Jesus and a Samaritan woman where the woman says they are waiting for the messiah
,, The woman saith unto him, I know that Messias cometh, which is called Christ: when he is come, he will tell us all things.”
and Jesus tells her
" Jesus saith unto her, I that speak unto thee am [he].
In the sixth chapter we have a record that Jesus came to his disciples by walking on the sea and when they saw him they were afraid but Jesus calmed them with the words:
,, But he saith unto them, It is I; be not afraid. "
We could recount this event, say, "Jesus tells them not to be afraid," I am "from eternity," I am "the creator. I have the strength to be able to walk on the sea because the sea and the waves listen to me."
Also in John we have a conversation between the Jews and Jesus where they compare him to Abraham and say that he is not greater than his father Abraham and challenge Him with a question in the sense that He exalts Himself
" Then said the Jews unto him, Now we know that thou hast a devil. Abraham is dead, and the prophets; and thou sayest, If a man keep my saying, he shall never taste of death. Art thou greater than our father Abraham, which is dead? and the prophets are dead: whom makest thou thyself?”
John 8: 52-53
And Jesus answers them that He is not exalted Himself but His Father exalts Him when they say that He is their God but only in words because we see that Jesus says that in fact they do not know Him
,,Jesus answered, If I honour myself, my honour is nothing: it is my Father that honoureth me; of whom ye say, that he is your God: Yet ye have not known him; but I know him: and if I should say, I know him not, I shall be a liar like unto you: but I know him, and keep his saying.”
John 8: 54-55
and then he answers them on the subject of Abraham and finally tells them Who He is.
“Your father Abraham rejoiced to see my day: and he saw [it], and was glad. Then said the Jews unto him, Thou art not yet fifty years old, and hast thou seen Abraham? Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.”
John 8: 56-58
Here Jesus is actually telling them, "I am the One who is," or, "I am the One who was," but of course they did not believe it, but took stones to throw at Him because they knew what "I am" meant. only God could say and that is the reason why they took stones to stone him because they thought that He blasphemed God and for that a punishment was prescribed - stoning.
" And thou shalt speak unto the children of Israel, saying, Whosoever curseth his God shall bear his sin. And he that blasphemeth the name of the Lold, he shall surely be put to death, [and] all the congregation shall certainly stone him: as well the stranger, as he that is born in the land, when he blasphemeth the name [of the Lord], shall be put to death.”
From this we can conclude only one thing. The Lord Jesus is the eternal God.
Let us now go through the Bible and see the verses that confirm what we have said so far.
" And [Abraham] planted a grove in Beersheba, and called there on the name of the Lord, the everlasting God.."
And God said moreover unto Moses, Thus shalt thou say unto the children of Israel, The LordGod of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, hath sent me unto you: this [is] my name for ever, and this [is] my memorial unto all generations. "
" The eternal God [is thy] refuge, and underneath [are] the everlasting arms: and he shall thrust out the enemy from before thee; and shall say, Destroy [them].
“But the Lord shall endure for ever: he hath prepared his throne for judgment."
"The Lord sat over the flood, and the Lord will sit like a king forever."
"Before him was born and the earth and the world were created, and from everlasting to everlasting, you are God."
,,Hast thou not known? hast thou not heard, [that] the everlasting God, the Lord, the Creator of the ends of the earth, fainteth not, neither is weary? [there is] no searching of his understanding."
" But the LORD [is] the true God, he [is] the living God, and an everlasting king: at his wrath the earth shall tremble, and the nations shall not be able to abide his indignation.
" And at the end of the days I Nebuchadnezzar lifted up mine eyes unto heaven, and mine understanding returned unto me, and I blessed the most High, and I praised and honoured him that liveth for ever, whose dominion [is] an everlasting dominion, and his kingdom [is] from generation to generation:
" Now unto the King eternal, immortal, invisible, the only wise God, [be] honour and glory for ever and ever. Amen."
1 Tim.1: 17
" And the four beasts had each of them six wings about [him]; and [they were] full of eyes within: and they rest not day and night, saying, Holy, holy, holy, Lord God Almighty, which was, and is, and is to come. And when those beasts give glory and honour and thanks to him that sat on the throne, who liveth for ever and ever, The four and twenty elders fall down before him that sat on the throne, and worship him that liveth for ever and ever, and cast their crowns before the throne, saying,”
Rev. 4: 8-10
God is eternal, let's believe in God.