3 - To praise the God is essential to the Christian worship.
a) The louvor one was a element-key in the worship of Israel the God (e.g., Sl 100.4; 106.1; 111.1; 113.1; 117);
b) Also in the primitive Christian worship (At 2,46, 47; 6.25; Rm 15,10, 11; Hb 2,12).