Throughout the Hebrew Bible, God is known as Elohim in relation to non-Israelites. To his covenant people he further revealed himself through his personal name (YHVH). Then, in the New Testament, he expanded the revelation of his covenant name through his Messiah who wore his name in person.
The Canaanites called their chief deity El, the Mighty Bull. In some Canaanite myths, one of El's sons was the notorious Ba'al, the nemesis of the true God throughout much of Israel's history.
In the Bible, El is often combined in proper names: Isra-El; Shmu-El (Samuel); El-ijah; Immanu-El; Jo-El; Dani-El; Beth-El. It's also found in compounds: El Shaddai, El Elyon, El Roi, El Olam.
Psalm 148 is a glorious psalm of praise. It is easy to see that praise is the theme. The command to praise the Lord is repeated nine times in the first five verses and twelve times in the entire psalm. We are commanded throughout the Psalms to worship Elohim. It is an honor, an obligation, and a privilege to honor God through our deeds and words.
Worship extends to our everyday lives. Sunday is not the only day to praise the Lord.
C.S. Lewis: “The most valuable thing the Psalms do for me is to express the same delight in God which made David dance." Our worship of God should be joyful. We are privileged to praise the Lord.
A.W. Tozer: “Worship is to feel in the heart and express in an appropriate manner a humbling but delightful sense of admiring awe.” We humble ourselves as we praise the King of Kings. We acknowledge who God is and who we are.
To hallow a thing is to make it holy or to set it apart to be exalted as being worthy of absolute devotion. To hallow the name of God is to regard Him with complete devotion and loving admiration. God's name is of the utmost importance (Neh 9:5); therefore we ought reserve it a position of grave significance in our minds and hearts. We should never take His name lightly (Ex 20:7; Lev 22:32), but always rejoice in it and think deeply upon its true meaning. This one reason why it troubles me that God's name is so often used in vulgar or foolish language.