Most likely God is mentioned in the Old Testament in what he said and did for His people.
In the Old Testament times this refers to Israel, God's chosen people. In the New Testament era, this is a reference both to the Jews, who remain God's chosen people and also to the Christians.
In the old testament a great deal of people as well as kings , prophets and queens are mentioned.So is God and the devil as well.
The Hebrew people
In the New Testament it's Jesus Christ. In the Old Testament it's Jehovah -- God of the people of Israel.
AnswerMalachi 3:6 For I am the LORD, I change not;
Many Gnostics saw the God of the Old Testament as an angry and capricious god, who demanded sacrifices, encouraged genocide and was vain, in that he demanded constant worship. They could not imagine that the God of the Old Testament could be the same god as the loving god of the New Testament. Because they could not see the Old Testament God and the New Testament God to be the same, they decided that the Old Testament God was a lesser god, who was not even aware of the New Testament God in the higher heavens. Thus, he believed himself to be the only God and the Lord of creation, but there was (in Gnostic view) a higher God. To many, it was not so much that the Old Testament God was evil, it was that he was wholly ignorant.
God would deliver them from the hands of their enemies.
The difference of the sons of god , in the two testaments are that in the old testament Jesus is the son of god. But in the New Testament we to can be the sons of god . If only we do believe that Jesus died for our sins.
The covenant.
Isaiah
This is not an entirely accurate statement of the Gnostic Christian belief about the nature of God. They could not believe that the harsh and unjust God of the Old Testament was the same as the loving and forgiving God of the New Testament, so they believed there must be two gods. The God of the Old Testament became the Demiurge, while the supreme God is the God of the New Testament. Thus, God of the New Testament is good and the Demiurge, the God of the Old Testament, is the bad God.