I Chronicles 21:4 Halakhah

וּדְבַר־הַמֶּ֖לֶךְ חָזַ֣ק עַל־יוֹאָ֑ב וַיֵּצֵ֣א יוֹאָ֗ב וַיִּתְהַלֵּךְ֙ בְּכָל־יִשְׂרָאֵ֔ל וַיָּבֹ֖א יְרוּשָׁלִָֽם׃

Nevertheless the king’s word prevailed against Joab. Wherefore Joab departed and went throughout all Israel, and came to Jerusalem.

Read halakhic rulings (Jewish law) on I Chronicles 21:4: and classical halakhic sources.