How do I love thee? Let me count the ways.
I love thee to the depth and breadth and height
My soul can reach, when feeling out of sight
For the ends of being and ideal grace.
I love thee to the level of every day's
Most quiet need, by sun and candle-light.
I love thee freely, as men strive for right.
I love thee purely, as they turn from praise.
I love thee with the passion put to use
In my old griefs, and with my childhood's faith.
I love thee with a love I seemed to lose
With my lost saints. I love thee with the breath,
Smiles, tears, of all my life; and, if God choose,
I shall but love thee better after death.

These lines contain both anaphora as well as repitition, anaphora is used when you repeat the first word of a sentence or line and repitition is to repeat a word group multiple times. In this case both are being used at the same time.
This literary device is called enumeration, being used to establish multiple concepts of equal value, in this case being used to sum up multiple equal and closely related concepts.