“Perfect” in the OT is the tr of shālēm, “finished,” “whole,” “complete,” used (except in Dt 25:15, “perfect weight”) of persons, e.g. a “perfect heart, i.e. wholly or completely devoted to Jeh (1 K 8:61, etc; 1 Ch 12:38; Isa 38:3, etc); tāmīm, “complete,” “perfect,” “sound or unblemished,” is also used of persons and of God, His way, and law (“Noah was a just man and perfect,” RVm “blameless” [Gen 6:9]; “As for God, his way is perfect” [Ps 18:30]; “The law of Jeh is perfect” [Ps 19:7], etc);