When we look at this final beatitude, Jesus does not call all persecution “blessed.” Rather, it is only that persecution that arises out of a righteousness grounded in interpersonal relationships and the rights and duties we owe to one another and to God.
Here the Lord honors those who find pleasure in diligently trying to make peace, not only so far as they are themselves concerned, but also among other people, that they may help to settle ugly and tangled disputes, endure contention, guard against and prevent war and bloodshed. – Martin Luther
Although the pure in heart cannot see God’s Essence, we can see God’s “energy”, such as his Goodness or his sanctifying Grace. Once our hearts are pure, our eyes are open to see the Divine throughout all of his Creation and especially his interaction with us.
Throughout Scripture, “righteousness” arises not simply in the negative of doing no harm, but includes the affirmative duties to “show mercy and compassion on the outcast, the oppressed, the weak, the orphan, and the widow” and “to have a burning compassion for the oppressed.”