Personally, I do not think there is anything wrong with it neither to those who say "Amen". I think most members of the Church would find it odd because they do not want to be compared to Evangelists or any other Religion. The early Brethren used the word Hallelujah quite often in meetings.
In any way you please, there is no restriction to saying it or when to say it so long at it is done in a reverent manner. Do not get me wrong, I do not go around saying this word, but I brought it up to see if we are too worried about what others thing to show vocal praise.
UPDATE--I deleted the previous response when my smarter half reminded me it was the Hosannah shout they used at the temple dedications, NOT Hallelujah! Sorry about that for anyone who read the original post!
Someone mentioned that the early brethren used it --I think they used it sometimes because of the religious background they already had. I think it is like you said JB, fine as long as it is used reverently.
Edited: AlaskanLDS on 31st Dec, 2008 - 3:41am
Nothing wrong with it, but a person may get some questioning looks as it is not something that happens everyday. At least where I live.
I sometimes like to watch other religions and see the excitement that they show in their worship. I believe they will be blessed for their enthusiasm with a portion of the spirit.
I'd feel weird saying that out loud just cause no one else says it.
I don't think its that quite customary to use now in the church. The only time I even say the word is singin Hymns.
I don't see anything wrong, or it actually being a sin to say....
In the mission field, we were teaching these pentecostals, and they would say amen or hallelujah after reading a scripture, making a valid point, or bearing testimony
quite frankly, it got repetiive and I could feel the presence of the spirit drifting away...
In all honesty, I would feel 'weird' saying it at church.