Most of us want a guarantee of something before we’re willing to step forward into whatever that something is.
I’ll take this medicine if it can be shown that it has worked for others. I’ll buy this car if other owners of the same type of car like it. I’ll take this job if they can guarantee that I won’t be laid off in the next year.
We want a promise or even a sign proving to us that someone or something is reliable. And the thing is we’re not that different from those in the first century.