Many times pianists will have difficulty knowing what to play once they have identified the chords on a praise chart. Here is a PDF where I have taken four chords of a progression and show 18 different chord patterns that can be used in an accompaniment. Of course there are hundreds of patterns, but this will give an idea on how to get started. Notice the voicing on the R.H. is the same on every line, it is just played in different ways. One of these patterns should not be used for an entire song as a few different ones should be mixed to add variety.