Psalm 150; Ps. 106:48

The Book of Psalms closes appropriately with a note of PRAISE. 
The meaning of praise.

? To shine; to flash forth light; 
? To make a boast of the Lord; 
? Latin- To prize (to put great value upon).
? To commend worthy;
? To act madly or make into a fool.

Praise demonstrates we enjoy God; exalt God; esteem God highly. 
God inhabits our praise (Ps. 22:3).
I. The PLACE of praise (v. 1). Praise is the main element of worship.
A. In the assembly-- On earth
B. In the open air-- In heaven
II. The PERSON we praise (vs. 1-2). 
A. Praise involves appreciation for what God has done--"…for his mighty acts…".
    1. Praise Him for the BLOOD
    2. Praise Him for the BOOK
    3. Praise Him for the BRETHREN
    4. Praise Him for the BLESSED HOPE.
B. It involves appreciation for God Himself, in His person-- "…according to his excellent greatness."  Praise glorifies God (Ps. 50:23).
III. The PROVISIONS of praise (vs. 3-5). 
A. Praises could be shouted (Ezra 3:11)
B. Praises could be sung (Ps. 9:11).
C. Praises could be symphonic (Ps. 150)
    1. Trumpet
    2. Psaltery (like a harp) cf. Ps. 33:2
    3. Harp (lyre) 
    4. Timbrel (Drum; tambourine; etc.)
    5. Dance (149:3; 2 Sam. 6:14 cf. Ex. 15:20).
    6. Stringed instruments (ukulele; guitar; mandolin; violin; banjo; bass; piano) 
    7. Organs (Like a pipe or reed) Clarinet, oboe, 
    8. Cymbals (both high sounding and loud).
NOTE: All this adds up to one thing-- Praise is both LOUD and LIVELY!
IV. The PNEUMATICS / PARTICIPANTS of praise (v. 6 cf. Ps. 148).