I guess you think every rock in the Bible is speaking of the same rock. You end up missing the entire point because you're so concerned with proving there is ONE GOD. No one denies there is ONE GOD. Other nations had their "rock" or god.
Deuteronomy 32:31 For their rock is not as our Rock, even our enemies themselves being judges.
The Lord God of Israel was
their fortress....their protector and guide...
their ROCK.
Psalm 31:3 For thou art my rock and my fortress; therefore for thy name's sake lead me, and guide me.
1 Samuel 2:2
There is none holy as the Lord: for there is none beside thee: neither is there any rock like our God.
The rock that gave water was referring to the rock of salvation....thus Jesus was that spiritual rock. The point being, the Jews did not stumble over the FORTRESS. The Lord God they worshipped was not the Rock of Offense. They stumbled over Jesus Christ being the Saviour...the One Saviour God....thus He WAS the Rock of Offense to the Jews.
When you read a verse from the Bible, you really should try to figure out why the verse is saying what it says. Are you claiming by your statement above that the Jews stumbled over their fortress God....their Rock?
I know that Jesus was God, but He was the Rock of Offense to the Jews. Which, btw, is why John the Baptist came preaching the baptism of repentance to the Jews. They needed to change their mind about their Rock.