The Father those who will worship Him in spirit and in truth. worship not praise.
While I agree with you about "worship leaders" elc (which is not according to the NT) if you read the Psalms, praise and worship go together.
So why are churches not singing the Psalms (which were all sung and set to musical instruments)? Many of the Psalms have already been set to music, but a lot of churches have abandoned "psalms, and hymns, and spiritual songs" and started singing repetitive words which have little or no biblical content. For example "Amazing Grace" has been replaced by "This is Amazing Grace" and here are the lyrics (partially):
Who breaks the power of sin and darkness?
Whose love is mighty and so much stronger?
[So much stronger than what?]
The King of glory, the King above all kings
Who shakes the whole earth with holy thunder?
And leaves us breathless in awe and wonder?
The King of glory, the King above all kings
This is amazing grace
This is unfailing love
That You would take my place
That You would bear my cross...
Let's focus on that last line. Did Christ "bear MY cross" or did He bear His own cross? And did he command us to bear our "crosses" or did he say He would bear them? So even the theology is all twisted. Now compare this to the actual hymn "Amazing Grace".