Not so much...The Pentecostal groups I am familiar with believe you can lose your salvation but they counter that by repenting and asking Jesus to save them all over again....Without works, as the Catholic religion falsely teaches...
No, Iscool, you got it backwards. The problem is NOT with the Pentacostals who believe they can lose their salvation (or the Methodists and others -- see for example this "Wesleyan" UMC web site) :
http://www.umc.org/site/apps/nlnet/content3.aspx?c=lwL4KnN1LtH&b=4746357&ct=5571239
Rather, the problem would be with those of you who believe in the Calvinist idea of once saved / always saved. You believe that once you are saved, there is absolutely nothing you can do to lose it.
If the Methodists and Pentacostals and Adventists (and Catholics) and others are right, you CAN lose your salvation after you've "been saved". That means you could be jeopardizing your very souls by living a profligate, sinful life, thinking you are saved and safe, but if they are right, you could actually be throwing your salvation away, dooming yourself to hell forever.
Psst...
Let’s get them dumb PROTESTants fussing amoungst themselves.
We’ll get a little rest that way!
—CatholicDude(ex-hewer of wood and carrier of water)