They are very subtle differences. Traditionally it is often said that English sentences shouldn't end with a preposition, so “It’s from the love of God that the enemy tries to separate us” would be more traditional. But many people think this rule is absurd (for example, "this is something up with which I will not put" sounds worse than "this is something I will not put up with"). The two alternatives you gave are extremely close in meaning and even native speakers could write it either way.