Blessed are they who hunger and thirst for righteousness, for they shall be satisfied.
In the Old Testament, the "old economy" was unable to satisfy the ideal of justice and sanctity. The Messianic promise was that man would be able to "allay his hunger and slake his thirst". This beatitude promises that man will contemplate the glory of God face to face when he hungers and thirsts for justice.
(Ferdinand Pratt, S.J.)