This is why you must be precise, for what you said was “No Jewish or Christian prayer is ever recorded in Scripture that addresses anyone but God,” but you left out prayer “to Heaven,” thus allowing Caths to invoke communication btwn persons in the same realm as support for praying to them in Heaven, which the Spirit of God only shows being made to God, and Christ as the only heavenly intercessor btwn God and man. (1Tim. 2:5) Thus communication btwn persons in the same realm is not the same thing, but it is all Caths can come up with.
And as a claim, it is ridiculous on its face. Two people in the same realm do not pray to each other. They simply talk.
Claims by catholics that turn conversations in the same realm into "prayers" demonstrate there is no evidence to support the idolatry of praying to departed saints.