Romans 10:1-4
Brothers and sisters, my hearts desire and prayer to God for the Israelites is that they may be saved. For I can testify about them that they are zealous for God, but their zeal is not based on knowledge.
Since they did not know the righteousness of God and sought to establish their own, they did not submit to Gods righteousness.
Christ is the culmination of the law so that there may be righteousness for everyone who believes.
The above fits MORMONism to a tee!
The whole meaning of that remark escapes you and your reply sounds like something that should be preached from a pulpit.