First, we will discuss about the concept of God, in Judaism. It is mentioned in the Old Testament - Moses (pbuh) says in the book of Deuteronomy, Ch. No. 6, V.No. 4, ‘Shama Israelo Adna ilahaina adna ikat’. It is a Hebrew quotation which means… ‘Hear oh Israel, the Lord our God, is one Lord’. That means… ‘God is One and Only’. It is further mentioned in the book of Isaiah Ch.No.43, V.No.11…‘I, even I, am Lord and besides Me there is no Savior’. In the book Isaiah, Ch.No. 45, V.No.5…‘I am Lord, and there is none else, and I am God, besides Me, who there is no one. In the book of Isaiah, Ch.No. 46, V.No 9, it says…‘I am Lord, and there is none else - I am God, and there is nothing like Me’. It is further mentioned in the Book ‘Exodus’, Ch. No.20, V.No.3 to 5. It says that… God Almighty says in the scriptures - ‘Thou shall have no other Gods besides Me’. Thou shall make unto thee no graven image of any likeness, of anything that is in the heavens above, that is in the earth beneath, and that is in the water under the earth. Thou shall not bow down to them, nor serve them, for I the Lord, the God, is a jealous God.’ Same message is repeated in the book of Deuteronomy, Ch.No. 5, V.No.7 to 9, that…‘Thou shall have no other gods besides Me. Thou shall not make thee any graven image, of any likeness, of anything that is the heavens above, that is in the earth beneath, and in the water beneath the earth. Thou shall not bow down thyself to them, nor serve them for I the Lord, the God am a jealous God’. So if you read the Old Testament, you will understand the concept of God in Judaism - it believes only in one God, and is totally against idol worship.