Psalms 51:14

Deliver me from bloodguiltiness From the power and the punishment of my sin. Cp. Psalms 39:8; Psalms 40:12. No doubt -bloodguiltiness" may include all -mortal sin," for which death was the punishment (see Ezekiel 18:13; Psalms 9:12, note); and the word is applicable enough to the nation which is repeatedly charged with the crime of murder (Isaiah 1:15; Isaiah 4:4; Jeremiah 19:4; Eze 7:23; 2 Kings 24:3-4; &c.); but it is distinctly appropriate to David's crimes of adultery and murder. Cp. 2 Samuel 12:5; 2 Samuel 12:13.

thy righteousness God's righteousness, i.e. His faithfulness to His character and covenant, is exhibited in the pardon of the penitent not less than in the judgement of the impenitent. "If we confess our sins, he is faithful and righteous to forgive us our sins, and to cleanse us from all unrighteousness" (1 John 1:9). Contrast Romans 2:4 ff.