'Understood' in the Bible

And recognizing the grace [that God had] bestowed on me, James and Cephas (Peter) and John, who were reputed to be pillars [of the Jerusalem church], gave to me and Barnabas the right hand of fellowship, so that we could go to the Gentiles [with their blessing] and they to the circumcised (Jews).

Now, however, since you have come to know [the true] God [through personal experience], or rather to be known by God, how is it that you are turning back again to the weak and worthless elemental principles [of religions and philosophies], to which you want to be enslaved all over again?