cha.sad describes showing oneself in a corresponding way toward the faithful or purified.

Across both attestations, cha.sad occurs in a second-person imperfect clause describing how the addressed person shows himself in relation to people characterized as faithful or purified.

1. Showing oneself correspondingly · dominant

   In 2 Samuel 22:26, the form appears in the clause concerning the faithful; the APB renders the verse, "With the faithful you show yourself faithful; with the blameless you show yourself blameless." In Psalm 18:26, the same form occurs with the purified, and the APB renders, "With the purified you show yourself pure, and with the twisted you show yourself twisted."

   2 Samuel 22:26Psalm 18:26

In the Anselm Project Bible: The APB presents the clauses with "you show yourself faithful" in 2 Samuel 22:26 and "you show yourself pure" in Psalm 18:26. These render the clauses rather than isolating the term's English equivalent.