There's no doubt that Jehovah of the Old Testament is no other than Jesus Christ of the New Testament.
Are these Biblical verses fiction (Mr. Moshe?)
2 Samuel 23:3 (King James Version)
The God of Israel said, the Rock of Israel spake to me, He that ruleth over men must be just, ruling in the fear of God.
1 Cor. 10:1-4 (King James Version)
1 Moreover, brethren, I would not that ye should be ignorant, how that all our fathers were under the cloud , and all passed through the sea ;
2 And were all baptized unto Moses in the cloud and in the sea;
3 And did all eat the same spiritual meat ;
4 And did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ.
Exodus 3:14 (King James Version)
And God said unto Moses, I AM THAT I AM: and he said, Thus shalt thou say unto the children of Israel, I AM hath sent me unto you.
John 8:58 (King James Version)
Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.