The word NAME is defined as: "A word or combination of words by which a person or thing is known". Our character (who we are) is associated with our name. Similarly, the name of the Lord is the manifestation of His character. It's through His name that we get to know our Father God.
Psalm 5:11 (AMP): "But let all who take refuge and put their trust in You rejoice, let them ever sing for joy; because You cover and shelter them, let those who love Your name be joyful and exult in You".