“phobeo” also translates as “to be in awe, to revere, to hold in reverence.
Strongs #5399 page 76 Greek translations
That’s the translation I had always heard, “awe”. Considering that He created the Universe just by speaking, that He created humankind knowing very well the price He would pay, and that He sent His Son to live as a man and die on a cross... well, all I can say is that we serve an awesome God!