I do Scripture songs maybe once every 2-3 sets, using songs like My Hope is in You (3rd Day), Made Me Glad (Hillsongs), Still (Hillsongs) and so on. There aren't enough well-written Scripture songs around, in my opinion. :(
I love scripture based songs - and there's many a time when as our Pastor has preached around a particular portion of scripture that it triggers a song/s which I then write down for the next set. The best times however, are when the songs are already in step with what's been preached. We actively look for scripture when choosing new songs to bring as they are the best ones to send the congregation home singing, I reckon.
I don't know if I would say it "out of style". For example, Matt Redman whose been writing songs for about 10 years now is a huge fan of hymns and lyrics right out of the bible.
Style and content are often confused. There are hymns that aren't based on bible verses and chorus songs that are based almost 100% on the bible verses/passages. There are also secular songs that based on the bible. U2 a lot of times will end a concert with the song "40" which is almost a exactly word for word out of the NIV Psalm 40. Some songs are also scripturally based, but just on more obscure passages or different translations.
Our worship team at church tries to reach all ages because we have such a wide-range of members, so we go for a blended worship. We have at least one traditional hymn song for each set, which often has direct bible quotes (so about at least 1 in 4 or 5). I also like using many songs that has direct bible quotes, as I try align the theological flow of the worship set, and keep it aligned with sermon/scripture reading.
For example This Sunday's set was: Sing For Joy - Lamont Heibert I Have Come To Love You - Paul Oakley, Martin Cooper I Stand Amazed (How Marvelous) - Edwin O. Excell, Charles Hutchison Gabriel I Will Rise - Chris Tomlin I Will Offer Up My Life - Matt Redman
As for prayer-like, that will depend on the theme. I don't think I really pick them out, (besides the attempt to have a range of traditional, 80/90's and modern songs, to accommodate the congregation) by style. I try to just find the right song to express what is most appropriate.
Good answers - I guess by 'out of style' I meant that it seems most newer songs by many Christian artists de-emphasize scriptural content in favor of more experiential 'me-based' lyrics. A bit of that is fine, but when it takes over the whole song set...
I think that to achieve a good balance we need the 'meatier' Bible-based songs as well as the milk...
(BTW, this Sunday we are doing 'Again I Say Rejoice' by Israel Houghton, which quotes a couple of Scriptures)
However, ultimately, with most music I think people write what people want to hear. (I'm sure a lot of people might not want to hear that paradigm applies, even with 'Christian' music.) In lots of ways it's still an industry. If we can somehow get people to be more bible focused, maybe that will allow those songs which are more theologically sound to "float to the surface".
Purely legislating something, often doesn't work. Education is probably the key. If people are picking songs for worship that "sound nice" or are "popular", that's probably not ideal. That is something that needs to be addressed.
With that said, the pendulum swings both ways. I'm sure, even if it's a trend, it might not last that long. I remember reading about Charles Gabriel Hutchinson, and why he wrote "I Stand Amazed", used by people like Billy Sunday in the revival crusades. He wanted to write new hymns that were more "fun" and "high energy". (http://locty.blogspot.com/2008_11_01_archive.html) Much like Charles Hutchinson, maybe there is another modern day version who will usher in a new wave of music, that is liken to days past of more 'meatier' songs.
I don't like most songs that are mostly direct quotes from the English Bible. Since the metre and rhyme is in Hebrew or Greek, they don't make very good modern songs. Further, their music was way different, so even the Psalms don't work well like that. Every once in a while, someone makes one work, but not often. In my case, all of our set songs are scripture based but not "scripture songs" (direct quotes). And like Junjie says below, I don't feel that there are enough well-written scripture songs.
well i for one am writing scripture based songs.....you will see them someday i hope....The worship leadership at my church has no time to listen so they don;t even know if these songs are any good. It makes me sad cause I had hoped that the first public play of my songs would be at my home church., I have unbelieving friends that would come to church to hear my songs !!!