One of the best synonyms for “fellowship” is “friendship.” You may have friendship without Christian fellowship, but it is impossible to have true Christian fellowship without heartfelt friendship. In other words, you may have some friends who aren’t believers, but koinonea (Christian fellowship) will be absent from your relationship. But some of the best and dearest friends you’ll ever have in this life (and you’ll know ‘em forever) are those with whom you have true fellowship.