PSALM 124 Barak

The words "Praise the Lord"  serve a social function of
calling people to participate in adoration of the LORD our God.
Baruk.....praise     Barak......to bless God
Baruk sentences explicitly grounds praise in a concrete reason.
The baruk sentence is the most original and immediate
form of the praise of God, the simple joyous response to a
definite act of God which has just been experienced.
Psalm 124:6
Blessed be the LORD who has not given us as pray to their sharp teeth.
Exodus 18:10
Blessed be the LORD who has delivered us from the Egyptians.
Psalm 124:8
Our help is in the name of the Lord.who made heaven and earth.
Concrete experience of God's intervention evokes praise.
A spontaneous response of gratitude, given what God has done,
is truly prayer.
In ritual practice or formal setting, only genuine reflection or meditation
on God's action,
could bring the same personal gratitude into the prayer.
One could meditate on Psalm 72:18
Blessed be the LORD, the God of Israel
who alone does wonderful things.