Self-Existence of God “I Am That I Am”
The self-existence of God refers to God’s real, perfect, unconditioned independence, or, His total and absolute capability to not need us or the rest of creation for anything, even though we and the rest of creation glorify him and bring him joy. God’s self-existence is also referred to as His aseity (from the Latin words a + se, which mean “existence derived from itself, having no other source”).
It is defined as:
noun ase•i•ty \āˈsēətē, əˈ-\
plural asei•ties \-ətēz\ also aseita•tes
The quality or state of being self-derived or self-originated; specifically : the absolute self-sufficiency, independence, and autonomy of God
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. (Exodus 3:14)
“The I AM” the Aseity of God, signifies the real being of God, his self-existence, and that he is the Being of beings; as also it denotes his eternity and immutability, and his constancy and faithfulness in fulfilling his promises, for it includes all time, past, present, and to come; and the sense is, not only I am what I am at present, but I am what I have been, and I am what I shall be, and shall be what I am – Gil
Moses needed this assurance about the one that commissioned him to have a balance in fulfilling his mission; that balance between the Self-confidence mingled with strong faith and great zeal that led him to murder the Egyptian prematurely and Sinful distrust of God that crept in under the garb of humility years after.
Before the mountains were brought forth, or ever thou hadst formed the earth and the world, even from everlasting to everlasting, thou art God. (Psalm 90:2)
“Even from everlasting to everlasting, thou art God”;
So are his love, grace, and mercy towards his people, and his covenant with us; and this is as true of Wisdom, our lord and Saviour Jesus Christ, Jehovah the Son as of the Father, whose eternity is described in the same manner as his:
The LORD possessed me in the beginning of his way, before his works of old. (Proverbs 8:22)
In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made. In him was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not. (John 1:1-5)
For as the Father hath life in himself; so hath he given to the Son to have life in himself. (John 5:26)
Who is the image of the invisible God, the firstborn of every creature: For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him: And he is before all things, and by him all things consist. (Colossians 1:15-17)
And Yes – that is where our confidence must come from – ALL THINGS WERE CREATED BY HIM, AND FOR HIM: AND HE IS BEFORE ALL THINGS, AND BY HIM ALL THINGS CONSISTS