[Alamo-Girl]

I only have a moment now but I wanted to address your question as soon as possible:

Where do you see "rock" in the Hebrew or in the Septuagint in Dut 32 or 2 Sam 22?

Tzur is Hebrew for "rock" - it is used in both places and many others. Tzur alone and with other word phrases is among the Biblical names or titles of God.

For Jewish Biblical teaching on the subject - and the references to Deuteronomy and 2 Samuel and others, see here:

Biblical and Talmudic Names for God

Another common title of YHWH is "the Rock" (Deuteronomy 32:4,18, 1, 7; I Samuel 2:2; II Samuel 22:32; Isaiah 44:8; Psalm 18:32), thus comparing Him to a high crag on which one finds refuge and safety.

[annalex]

Tzur, right. I forgot.

It is not in the Septuagint though. In Deut 32 the Greek is "theos alethina ta erga autou", and in 2 Sam 22 the word is "ktistes". This explains the absence of "rock" in Vulgate.