I included 841 in the link in post 202, immediately after 839 and 840 to show the context. Hagar did not just think she was serving the same God as Abraham. Hagar belonged to Abraham's house and the angel of the LORD appeared to her and spoke to her and she even gave God a name. She was obviously serving the same God as Abraham.
As for your other question, the Catechism is the authoritative voice and answers it.
Do you think you worship the same God as is worshipped and adored by the Jews ?
The reason I said she "thought" was simply to confirm what was on her mind. I did not mean to imply that she wasn't worshipping Abraham's God. She was. and God blessed her. I can see why you thought that I meant something else, though.
Naturally, you know that I don't buy the statement that catechism is authoritative. But I won't go there because we are having a nice dialog.
I definitely DO worship the God of Abraham, Isaac, Jacob, Moses, David, Rahab, Naomi, Nahum, Paul, Mary, and Onesimus -just to name a few.
I worship the same God that Jews worship in truth. They are God's chosen people and I believe that they can be saved if they accept Christ as their Lord and Savior. Without Christ, their knowledge of God is incomplete but they worship the same God as I, when they worship Him in truth.
The simple question isn't whether KR worships the same God as the Jews (He does.), it is:
Does the Holy Roman Catholic Church believe that the God it worships is the same as the God who is worshiped by Muslims?
Please continue to be patient with me.
#839 is about the Jews. It is not relevant to the question I am humbly asking.
#840 is about people of the Covenant. Hagar is not of the same covenant. As Sarah said, (Gen 21) “Get rid of that slave woman and her son, for that woman’s son will never share in the inheritance with my son Isaac.” And it is so. See also Gen 17:21 and Gal 4:24, regarding the two covenants.
#841 is an incomplete view of salvation. God's Word is clear about that. Adoring the one merciful God is not a ticket to eternal life. That, too is a subject that we have engaged in the past - and may we put that important question aside for the sake of this dialog?
I want to make one point clear: ANY person who trust God by trusting Jesus Christ as their personal Lord and Savior will be saved. I became part of the Covenant by being "grafted in contrary to nature." (Rom 11) The same could be true for any person - including Muslims.
But the question remains and I do not yet see an answer that is plain and clear to me.