Of, pertaining to, or in the form of a benediction(adjective)
Giving thanks(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "benedictory" in a sentence
"It's the kind of benedictory statement one would expect at the end of a director's career, but Kurosawa's 1952 drama preceded his massive international success"
"We've also included introductory and benedictory comments from the Rev. Otis Moss, Trinity UCC's new minister who took over for longtime pastor, the Rev. Jeremiah Wright, earlier this spring."
"After about twenty seconds he returned to his students and raised his hands in a benedictory gesture."