By Allan Eakin, Associate Editor       Celebration 2023, formerly known as the National Senior Adult Conference, featured concerts, worship music, preaching, a Sight and Sound Theater presentation, giveaways and lots of fellowship. Lifeword Executive Director Donny Parrish, who also serves as the director of conferences for the BMA of America, kicked off the event by welcoming the 400-plus participants.       The conference featured two concerts. Redeemed Renuion! — a trio of Mike ...