Here’s the first time praise is used:
Genesis 29:35 (KJV)
And she conceived again, and bare a son: and she said, Now will I praise the LORD: therefore she called his name Judah; and left bearing.
So let’s look at praise. ידה is yada in Hebrew and means to shoot arrows, to cast, to throw down, to laud, to give thanks, to confess sins. It also means hand.
Its letters mean:
י – arm and hand/deed/work – value of 10
ד – door/pathway – value of 4
ה – grace/revelation/window – value of 5
Total: 19 (a prime number)
So praise is to use your arms and hands (Psa 134:2; 1 Tim 2:8) which opens a doorway to grace and revelation. The idea also is the movements of the hand enables work in the flesh and in the spirit. We raise our hands like a child asking for help, throw up our hands in surrender to a superior Force, in praise to give thanks and glory to God, and cast our cares and sins to His faithful judgement.
Judah – יהודה – is the tribe that always went up first to battle. We should praise before battle! If you remove the ד(Door – John 10:9 
) from the word you have יהוה which is the name God gave to Moses! Indeed, the Door from the tribe of Judah (Praise) is the Pathway (John 14:6) to the Father through confession and praise (Rom 10:9)!