Jude concluded his brief epistle with a formal doxology. It included a prayer for his readers. He wanted to assure them of God"s ability to help them remain faithful in spite of the apostasy that threatened them. [source][source][source]
"The concluding doxology ( Jude 1:24-25) is universally recognized as one of the fullest and most beautiful in Scripture. Stressing the security of the believer in the midst of apostasy, it brings the epistle to a marvelous conclusion." [1][source]
"It lifts the thoughts from earthly conflicts with which the author has been compelled to busy himself, up to the heavenly realms, where God is enthroned amidst eternal might and honor." [2][source]