As Benedictine Dom Matthew Britt stated:
And it might be remarked in passing that an adequate exposition of the psalms did not await the advent of the modern philologist and Biblical critic as may be ascertained from a study of Bishop Agellius’ Commentarii in Psalmos et in divini Officii Cantica  or Blessed Cardinal Bellarmine’s Explanatio in Psalmos. For profound insight, for wealth and aptness of illustration, for lucidity and felicity of expression, combined with an innate reverence for the Sacred Scriptures, it is doubtful if these two holy prelates have been excelled by any commentators ancient or modern….