Even Jude is against your position. Jude is talking about the church, not individuals.
Jude:
3Dear friends, although I was very eager to write to you about the salvation we share, I felt compelled to write and urge you to contend for the faith that was once for all entrusted to God’s holy people. 4For certain individuals whose condemnation was written aboutb long ago have secretly slipped in among you. They are ungodly people, who pervert the grace of our God into a license for immorality and deny Jesus Christ our only Sovereign and Lord.
.........
20But you, dear friends, by building yourselves up in your most holy faith and praying in the Holy Spirit,21keep yourselves in God’s love as you wait for the mercy of our Lord Jesus Christ to bring you to eternal life.
22Be merciful to those who doubt; 23save others by snatching them from the fire; to others show mercy, mixed with fear—hating even the clothing stained by corrupted flesh.
Again, Jude repeats what Paul has been saying in 1 Corinthians. None of these means that people are built when they pray words that they don't understand. Jude is writing to a Church and is urging them to build themselves (as the church not as individuals) bu ignoring those that slander amongst them. Nothing to suggest meaningless language.
Jude:
3Dear friends, although I was very eager to write to you about the salvation we share, I felt compelled to write and urge you to contend for the faith that was once for all entrusted to God’s holy people. 4For certain individuals whose condemnation was written aboutb long ago have secretly slipped in among you. They are ungodly people, who pervert the grace of our God into a license for immorality and deny Jesus Christ our only Sovereign and Lord.
.........
20But you, dear friends, by building yourselves up in your most holy faith and praying in the Holy Spirit,21keep yourselves in God’s love as you wait for the mercy of our Lord Jesus Christ to bring you to eternal life.
22Be merciful to those who doubt; 23save others by snatching them from the fire; to others show mercy, mixed with fear—hating even the clothing stained by corrupted flesh.
Again, Jude repeats what Paul has been saying in 1 Corinthians. None of these means that people are built when they pray words that they don't understand. Jude is writing to a Church and is urging them to build themselves (as the church not as individuals) bu ignoring those that slander amongst them. Nothing to suggest meaningless language.