Charles Ellicott Commentary Psalms 119:1

"Blessed are they that are perfect in the way, Who walk in the law of Jehovah." — Psalms 119:1 (ASV)

ALEPH.

Undefiled. —Better, blameless or perfect.

Way. —See the same use without a qualifying epithet in Psalm 2:12. There was only one way of safety and peace for an Israelite, here by the parallelism defined as “the law of Jehovah.” But even pagan ethics bore witness to the same truth: “Declinandum de viâ sit modo ne summa turpitudo sequatur” (Cicero, De Amicitia, 17).