God already said “faith without works is dead.” “Grit” is not new. You must believe in Him, His ability to make it happen for you by His will and then work in a dedicated and committed way towards the objective. Merely being “smart” or “talented” and/or having “goals” is necessary but insufficient. In all your “getting” of stuff seek ye FIRST the kingdom of God and all other things will be added unto it, not the other way round. Get the other stuff first and you are quickly parted from it. Rely on your own understanding alone and a random or intentionally-created “blind spot” will do you in.