We know that an angel of the Lord appeared to Moses in the Burning Bush, and God spoke to Moses through the Burning Bush. In Gen. 18 The Lord spoke through the 3 men who appeared to Abraham that Gen. 19 describes as angels . God speaks to His creatures through His creatures. After all, the word “angel” means messenger.
Not if one understands the language of theology. In Genesis we see how God speaks His creation into existence: “the Spirit of God was hovering over the waters. And God said, “Let there be light,” and there was light.”
In theological language, God is The “Eternal Thought” who begets His “Eternal Word” and acts through the “Spirit of God”. As described in the Creation passages.
Man is made in the Image and Likeness of God; this means that Man has an intellect and a will, and the power to produce ideas. God is infinite, whereas Man is a tiny and limited creature, yet we reflect the Image and Likeness of God.
Theology describes the Trinity in human terms for us to grasp the unfolding Mystery of God. For example, in human nature the principle of generation is Fatherhood.
Thus instead of calling God “The Eternal Thought” we call Him “The Father”. The “Eternal Word” of God is called “The Son”. The Father eternally begets The Son.
In Catholicism, Jesus the historical man who split history in two, is the Word of God who became man. This is known as the Incarnation. This event in history ties in with all the messianic prophecies, which includes a suffering messiah.
The Mystery of God becoming Man in order to to suffer on behalf of Man to save us from sin is known as the Hypostatic Union which describes the divine and human nature in the one person of Christ.
God is a Mystery. We can only know as much about Him as we can deduce from nature and study what He has revealed about Himself. For Man to know the infinite God, it is God who has to reveal Himself to Man. We see this revelation with Abraham; by the time Moses comes along God reveals His Name I AM Who AM.
In the messianic prophecy the messiah is described:
“He will be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace”. -Is.9:6
in Is. 43 God calls Himself Israel’s King, the Holy One, the only Redeemer.
In Catholicism, God’s unfolding revelation is about His relationship with Man, from Creator to Redeemer, Sanctifier and King; making us adopted children of The Father.
The idea of a military messiah who will use modern military weapons to crush enemies and create a worldly empire in the Middle East is incompatible with Catholic theology.
The redeemer conquers death itself so that all can have a share in God’s Eternal Kingdom as adopted members of His Family.