Praising God is a privilege. It ADDS TO YOU, not God. We are slothful, won't lift our hands, shout hallelujah, give a hand clap or even so much as a wave as though we are depriving God. No, brothers and sisters in Christ, we are the ones who suffer when we fail to praise!
Psalms 149 makes this truth abundantly clear. When we humble ourselves and give God the glory like the 24 elders around the throne (Rev. 4) , when we rejoice in Him, we absorb power. Praise (v.6) is a two-edged sword in our hands. Wait---HIS TONGUE is sharper than a two-edged sword (Rev. 1:16) so when we praise we are weilding the power of God that is in Christ, in whom dwelt all of the fulnbess of the Godhead bodily.....HMMM! That's more power than all of the energy companies put together.
With that kind of power vengeance (v.7) is executed upon the heathen---vengeance is His saith the Lord so if we get to weild the sword of praise and get revenge it is because CHRIST is the one handling our business. Glory. Praise will punish the people (v.7) ---despise not thou the chastening, those whom He loves He chastens.
Now look at this one. We cry out like the Isrealites about the wickedness of Pharoah, some of our local authorities, police, sheriffs, welfare and social workers. Want them put in check? Then praise God---(v.8) 'to bind their kings with chains and their nobles with fetters of iron'---a pretty sight?! This is how injustice is rectified. What is bound on earth is bound in heaven. God is our silent partner--a very present help in times of trouble and shelter in the time of storm. (v.9) 'To execute upon them the vengeance written, THIS HONOR HAVE ALL HIS SAINTS. PRAISE YE THE LORD.'
That's why we say when the praises go up, the blessings come down---feel a praise comin' on?!