Relevant to the common alive person. I'll be that person chosen at random; I don't understand the motto. How is it relevant to a school? Good riddance.
Maybe you aren't relevant to Oxford University Press — very seriously, no insult meant. You're not the audience, and whether you understand it is not their concern.
That is likely, but you're alluding you know who the audience is when you don't. I'm correct in assuming you don't work for Oxford. I obviously lied and said I didn't understand to entertain the conversation that I was confused by the use of a psalm. If I'm honest, I mostly just find it archaic, which is maybe appropriate for a school as old as Oxford.
Why do you personally think they removed it? Bad Design?