Ps. 29:1, 2 – “Give unto the Lord, O ye mighty, give unto the Lord glory and strength. Give unto the Lord the glory due unto his name; worship the Lord in the beauty of holiness.”
Worshipping the Lord in the beauty of holiness means to live a holy life. That is, a life that reflects the character of God. For God is holy. This will truly bring God glory because others will see how much Jesus has changed our lives and praise God for His doing so.