1Ch 16:29 Give unto the LORD the glory due unto his name: bring an offering, and come before him: worship the LORD in the beauty of holiness.
Something I find very interesting is in the Old Testament Worship is always connected with sacrifice. The things we willingly give up for God. The way we we live our lives fasting prayer our offerings are all forms of worship. When Abraham was going to sacrifice Isaac notice what he told his servants:
Gen 22:5 And Abraham said unto his young men, Abide ye here with the ass; and I and the lad will go yonder and worship, and come again to you.
His sacrifice was worship. Praise is enjoyable it makes us feel good we leave feeling happy. We don't worship as much anymore because in scripture it's related to sacrifice.
Worship
H7812
שׁחה
shâchâh
shaw-khaw'
A primitive root; to depress, that is, prostrate (especially reflexively in homage to royalty or God): - bow (self) down, crouch, fall down (flat), humbly beseech, do (make) obeisance, do reverence, make to stoop, worship.