Psalms 139:19 Halakhah

אִם־תִּקְטֹ֖ל אֱל֥וֹהַּ ׀ רָשָׁ֑ע וְאַנְשֵׁ֥י דָ֝מִ֗ים ס֣וּרוּ מֶֽנִּי׃

If Thou but wouldest slay the wicked, O God— Depart from me therefore, ye men of blood;

Read halakhic rulings (Jewish law) on Psalms 139:19: and classical halakhic sources.