Psalms 106:38

106:38 They shed innocent blood –

the blood of their sons and daughters,

whom they sacrificed to the idols of Canaan.

The land was polluted by bloodshed. ¹ 

Psalms 132:12

132:12 If your sons keep my covenant

and the rules I teach them,

their sons will also sit on your throne forever.”

[106:38]  ¹ sn Num 35:33-34 explains that bloodshed defiles a land.