Instrumental worship for New Testament Christians can be justified (debate #2)

I previously said "we do not have authority to worship God with instruments alone in the New Testament" and then you replied, "Ok, you have not cited a chapter and verse where I might find this statement in the New Testament; therefore, we shall conclude that this is man's opinion, and not God's Word." I stand by my statement, nowhere in the NT explicitly or implicitly hints that God allows Him (God) to be worshiped by the playing of instruments alone. This is especially true from Ephesians 5:19 where it commands that we definitely are required to sing, and also (allows, which you said you agreed earlier, 'I agree that musical instruments are not forbidden in Christian worship.') we would both agree that psalms makes an allowance for instruments. You would claim that any instruments are suitable but by the command in Ephesians 5:19 we MUST sing and therefore if we play an instrument that would not allow us to sing (ex. trumpet) then we would not be following the commandment. The part of the verse in Ephesians 5:19 that says "Sing and make music from your heart to the Lord," is in reference to the three types of songs we were commanded to sing, psalms, hymns, and spiritual songs. WE MUST SING. When then considering psalms, psalms only allows, by example of the OT usage of David, that stringed instruments are permitted and that stringed instruments are permitted by the words definition. Here are some authorities that confirm that the definition only calls for stringed instruments: (1) "Sung with musical instruments" (Matthew Henry's Commentary, p. 1136). (2) "Denoting ‘music on stringed instruments' or more generally, ‘songs adapted to such music'" (Unger's Bible Dictionary, Moody Press). (3) "Song, psalm: to stringed instrument" (Karl Feyerabend, Ph.D., Greek-English Dictionary, McKay co., 1918). (4) "The psalm (PSALMOS) is the melody produced on the musical instrument (ORGANON). The song (ODE) is the utterance of melody (MELOS) through the mouth with words. Hymn (HUMNOS) is the praise offered to God" (Gregory of Nyssa, 370 A.D.). (5) "A harp-song taken from Jewish religion by the Christians... (Music Lovers Ency., Doubleday & Co., p. 662). (6) "Song of (hence the song sung to) a stringed instrument..." (The Columbia Ency., Columbia University Press, p. 1450). (7) "Song accompanied by a stringed instrument, psalm" (A Glossary of Later Latin to 600 A.D., by A. Souter, Oxford, Clarendon Press). Psallo: (verb) "I play on the harp (or other stringed instrument;" psalmos (noun), "a psalm, that is a song of praise, etc., to God, with an accompaniment on the harp," (A. Souter, A Pocket Lexicon to the Greek New Testament, Oxford, Clarendon Press). (8) "To be uttered with a musical accompaniment" (Hitchcock's Analysis of the Holy Bible, p. 1137). We also know though, by example a psalm is still a psalm whether it has musical accompaniment or not, based on David's psalms that had no accompaniment. We have no evidence of God not being pleased with David's psalms that were not accompanied, therefore it would be illogical to assume He was unhappy with them. If the word changed in meaning the burden of proof is not on me, its you to prove that it did in fact change. I would like evidence of this. Some argue that 'Apostolic example' would be proof as well as all historical records of the early NT church never using instruments being proof that the word changed. This is not proof at all. Since by my evidence and proof that the command to sing psalms can be fulfilled without using instruments, I would argue it was in the Apostles and early churches liberties to choose to not use an instrument. My opponent then goes on to say that Ephesians 5:19 is not a "list" of sings we can or cannot do. This is a classic straw man, he creates an argument that I did not propose. Never once did I say Ephesians 5:19 was a list. My opponent creates this argument to defeat it in hopes of discrediting my evidence. All I ever have stated is what the commands are in Ephesians 5:19 based on what it says. Sure there are a couple different components to consider within Ephesians 5:19 those being: singing, psalms, hymns, and spiritual songs but to say that since this command doesn't mention preaching that your viewpoint is correct is absurd. If you want to say I'm creating out of this verse everything we are ever aloud to do in all aspects of worship (examples: preaching, teaching, Lord's Supper) you are definitely creating an argument that I was never proposing. The only "list" as you put it that I'm addressing is the one found in Ephesians 5:19. Lastly my opponent poses a question to me which is, and I quote "In my opening argument, I pointed out a number of things that are thought to be "necessary" to Christian churches, such as pulpits, pews, etc. that are not "authorized" by New Testament scripture, does that mean those items are FORBIDDEN in church?" By not authorized you mean that the bible is silent on these things. Where the bible is silent I would say we have freedom. But, based on my evidence the bible is not silent on the matter at hand.