well not an Old Testament or New Testament theologian, but i would say at this point in my understanding: perhaps the believing orthodox jews worship the same God, the “Elohim” since the Christ and the Holy Spirit were with the Father from the beginning. they however may deny the incarnation of the Christ in Jesus.
what say you?
It's best undersood in context, to shen you click the link, click ceelow the boxed quote, where it says "Enter the Catechism at this paragraph."