yet made we not our prayer before - literally, “soothed not the face of.” Not even our chastisement has taught us penitence (Isa 9:13; Jer 5:3; Hos 7:10). Diseased, we spurn the healing medicine.
that we might turn, etc. - Prayer can only be accepted when joined with the desire to turn from sin to God (Psa 66:18; Pro 28:9).
understand thy truth - “attentively regard Thy faithfulness” in fulfilling Thy promises, and also Thy threats [Calvin]. Thy law (Dan 8:12), [Maurer].