Answer:
The phrase "To err is human to forgive is divine" demonstrates a paradoxical rhetorical technique.
Explanation:
This phrase demonstrates a rhetorical technique known as parallelism, in which two parallel phrases or clauses are used in a balanced manner to emphasize a point. In this case, the two phrases "to err is human" and "to forgive is divine" are parallel in structure and convey the idea that making mistakes is a natural part of being human, while forgiving others is a higher, more noble act. The use of parallelism in this phrase not only makes it more memorable and impactful, but also helps to reinforce the contrast between the two ideas being presented.