We didn’t spank our kids too much - and I must admit that when I did it was more because of the day I was having (hence why I tried to recognize it and not do it too much).
I’m not sure if we said a prayer, but afterwords I would hold them and hug them and tell them how much I loved them and only want them to grow up well, and sometimes that needs discipline.
Usually it was the “time outs” and taking away some privilege's that we used. But each kid was a bit different.
(Me - I sort of thought that after the thrill of the chase the whole spanking thing my mom did was a bit anticlimactic!)