Thanks pastor! I'm going to have to take notes on what I did here, my mixes are never received this well
I think what you may have mistaken for horns was the ebow? There's only electric guitars, the organ and bass and vocals. The ebow, if you're a guitar player and don't have one, you should... It's a cool little device you hold in your hand in lieu of a pick. And instead of picking notes, it has a magnet in it and it "excites" the string causing it to vibrate. Depending on how you hold it, and where, you can get a wide variety of sounds from an electric guitar ranging from whistling sustain, to horns to flutes or clarinets. It's really a cool gizmo. Watch him make it sound like a bagpipe...
https://www.youtube.com/watch?v=NIWMrK67_bk