You say Jesus is God. But Jesus is God's son. Do you believe in the trinity that God and Jesus is one and that Jesus is God's son? How? The definition of son is someone born to or adopted. That means a beginning. Do you believe God has a beginning?
The book of Revelation answers this. More specifically in 1:8 and 1:17
Revelation 1:8-18
8 'I am the Alpha and the Omega,' says the Lord God, who is, who was, and who is to come, the Almighty.
9 I, John, your brother and partner in hardships, in the kingdom and in perseverance in Jesus, was on the island of Patmos on account of the Word of God and of witness to Jesus;
10 it was the Lord's Day and I was in ecstasy, and I heard a loud voice behind me, like the sound of a trumpet, saying,
11 'Write down in a book all that you see, and send it to the seven churches of Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia and Laodicea.'
12 I turned round to see who was speaking to me, and when I turned I saw seven golden lamp-stands
13 and, in the middle of them, one like a Son of man, dressed in a long robe tied at the waist with a belt of gold.
14 His head and his hair were white with the whiteness of wool, like snow, his eyes like a burning flame,
15 his feet like burnished bronze when it has been refined in a furnace, and his voice like the sound of the ocean.
16 In his right hand he was holding seven stars, out of his mouth came a sharp sword, double-edged, and his face was like the sun shining with all its force.
17 When I saw him, I fell at his feet as though dead, but he laid his right hand on me and said, 'Do not be afraid; it is I, the First and the Last; I am the Living One,
18 I was dead and look -- I am alive for ever and ever, and I hold the keys of death and of Hades.