Batter my Heart three personed God

One of the clearly present themes in this poem is the use of a paradox. Really the whole poem is a bit paradoxical however there are some specific instances in which specific lines are a single paradox within themselves. One example is in line 10 when it says, "But [I] am betrothed unto your enemy." This is a bit of a paradox since why would you marry someone who you want to marry's enemy? Thats confusing but thats a paradox I guess. It makes sense though since (s)he is figuratively married to satan since (s)he is inclined to sin.