Jamieson, Fausset & Brown

writest--a judicial phrase, to note down the determined punishment. The sentence of the condemned used to be written down (Isa 10:1; Jer 22:30; Psa 149:9) [UMBREIT]. bitter things--bitter punishments. makest me to possess--or "inherit." In old age he receives possession of the inheritance of sin thoughtlessly acquired in youth. "To inherit sins" is to inherit the punishments inseparably connected with them in Hebrew ideas (Psa 25:7).