The Greek word baptizo means to immerse in water. No ifs or buts, no wriggle-room there. Deal with it, thethinker.
The Greek "baptizo" does NOT mean "to immerse." The word "baptizo" is used in Hebrews 9:10 about ritual baptisms which according to the next several verses involved sprinkling.
The sprinkling in the following verses refers to the sprinkling of blood - they're not talking about baptism at all. But even if they were, it wouldn't alter the fact that baptizo means immerse.
Correct. Here is Heb. 9:13, which refers to the blood from sacrificial animals:
13 For if the blood of bulls and goats and the ashes of a heifer, sprinkling the unclean, sanctifies for the purifying of the flesh, 14 how much more shall the blood of Christ, who through the eternal Spirit offered Himself without spot to God, cleanse your conscience from dead works to serve the living God?
Here is the same verse, in the original Greek:
13 εἰ γὰρ τὸ αἷμα ταύρων καὶ τράγων καὶ σποδὸς δαμάλεως ραντίζουσα
τοὺς κεκοινωμένους ἁγιάζει πρὸς τὴν τῆς σαρκὸς καθαρότητα,
freddief, the bolded word rantizousa
clearly means sprinkling
. This word has no connection with the word for baptism
, which means immersion
. freddief, you can choose to disagree with this, but you would still be wrong.
Here are the other two verses you mentioned, with the word in question bolded:
19 λαληθείσης γὰρ πάσης ἐντολῆς κατὰ τὸν νόμον ὑπὸ Μωϋσέως παντὶ τῷ λαῷ, λαβὼν τὸ αἷμα τῶν μόσχων καὶ τράγων μετὰ ὕδατος καὶ ἐρίου κοκκίνου καὶ ὑσσώπου, αὐτό τε τὸ βιβλίον καὶ πάντα τὸν λαὸν ἐρράντισε
21 καὶ τὴν σκηνὴν δὲ καὶ πάντα τὰ σκεύη τῆς λειτουργίας τῷ αἵματι ὁμοίως ἐρράντισε
By contrast, Christ's Great Commission to the Apostles doesn't mention sprinkling, but baptism (immersion). None of the mentions of baptism in the Gospels and the Epistles use the word for sprinkling.
The mention of the story of Philip and the Ethiopian eunuch, and the existence of ancient baptistries which clearly would have been filled with water further confirms the fact that the practice of baptism by immersion was the standard practice, and continues to be among the Orthodox to this day.