You cannot disprove the trinity as per the Hebrew Scripture

I am amaze to see how ridiculous is the trinity. The reason I asked for this debate was not because I believe in the trinity, but to show how people reads things in the Hebrew Bible ("old" testament). Even if G-d said He is ONE, how can we disprove easily that false doctrine. It is clear from His words that G-d is NOT a trinity, but why, when we speak to a Jesus' believer, all arguments go in the wind and even if the passage clearly say He is one, my Christian friend does not see it. LOGICAL FALLACY: I agree with my opponent, the burden of the the trinitarian should be on them. Nevertheless, I clearly stated that in my debate "you cannot disprove the Trinity". Thus, even if we should not need to disprove the trinity, Christian state that god is a trinity. How can we, who disbelieve the non testament prove that their doctrine of the trinity is nothing more than non-sense? We just can't, and that's what I will show you. PHILOSOPHICAL REBUTTAL: Philosopically speaking, you may be right, but Biblically speaking, someone could use the manifestations of G-d like the shekinah or the experience at the burning bush and say that G-d can manifest Himself in different ways. Also, you are right to say that G-d is no man, but that would be another debate. G-d clearly said that He is one, nevertheless, something happen in the mind of the Trinitarian believer. Here how he translates the bible verse according to his belief. Thus saith (a group of three gods who are one), the King of Israel, and his Redeemer the LORD of hosts: I am the first, and I am the last, and beside Me (the groups of three gods) there is no god. Even if the Bible verse clearly say that there is no one except G-d, the trinitarian put (Jesus/father/HS) there as the lord. That is what the belief of the trinity is. A group of three gods who are one and who is(are) called the lord. (I know it might be offensive to Jewish people to read and that group of three gods is not the L-rd, but this is to prove my point). I, am the (group of gods who are Jesus, the father and the mysterious "holy" spirit) ; and beside Me (that group of gods) there is no saviour. Hear O gentiles, our Lords is gods, our group of three gods is one. they will usually say something like "the woman and the man become one, so a group of gods can also be one" Even if the verse clearly say that G-d is one, they will twist it in such a way to remove all meaning out of it! And, because the Non testament say that Jesus is god and that he is different than the "holy" spirit and the father, that must be true, because their false book say so! And even if the Hebrew Bible say the opposite, they can only read their doctrine into it! You shall have no other gods before me (the group of three gods who are one) So on and so forth they can twist scripture, but we are not closer to disprove that false doctrine! "said "[. .. ] before me"" And see how it contradict "For there is one god and one mediator between god and mankind, the man Christ Jesus," 1 Tim 2:5 We both know it's not biblical, but the will add "said "[. .. ] before me (the group of three gods who are one)"" and they are still right in their eyes! And we are no closer to disprove that LIE! Vanity of vanities! But G-d is one, and only at the end they will realize that they have inherited a lie! LORD, my strength and my fortress, my refuge in time of distress, to you the nations will come from the ends of the earth and say, "Our ancestors possessed nothing but false gods, worthless idols that did them no good. Jeremiah 16 And the Lord shall become King over all the earth; on that day shall the Lord be one, and His name one.